Directory of Researchers

TOMIYAMA Akio
Graduate School of Engineering/Department of Mechanical Engineering
Professor
Mechanical Engineering
Last Updated :2020/04/05

Researcher Profile and Settings

Affiliation

  • <Faculty / Graduate School / Others>

    Graduate School of Engineering/Department of Mechanical Engineering
  • <Related Faculty / Graduate School / Others>

    Faculty of Engineering/Department of Mechanical Engineering, University Libraries

Degree

  • Ph.D. / Doctor

Teaching

  • Analysis of Complex Thermal-Hydraulic Phenomena, Graduate School of Engineering/Department of Mechanical Engineering, 2019
  • Complex Fluid Dynamics I, Graduate School of Engineering/Department of Mechanical Engineering, 2019
  • Complex Fluid Dynamics II, Graduate School of Engineering/Department of Mechanical Engineering, 2019
  • Fluid Engineering, Faculty of Engineering/Department of Mechanical Engineering, 2019
  • Special Exercises of Fluid Engineering, Faculty of Engineering/Department of Mechanical Engineering, 2019

Research Activities

Research Interests

  • Multi-phase Flow
  • Chemical Engineering
  • Nuclear Engineering
  • Fluid Engineering

Research Areas

  • Manufacturing technology (mechanical, electrical/electronic, chemical engineering) / Fluid engineering

Awards

  • Aug.2017, 日本混相流学会, 日本混相流学会「論文賞」, 鉛直管における気液対向流制限

    楠木 貴世志, 山本 泰功, 村瀬 道雄, HAYASHI KOSUKE, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    Japan

  • Dec.2014, 15th International Topical Meeting on Nuclear Reactor Thermalhydraulics (NURETH-15), Best Paper Award, Concendation Experiments for Counter-Current Flow Limitation at Lower End of an Invertied U-Tube

    KINOSHITA TAKAYOSHI, MURASE MICHIO, FUJII YUKI, NOZUE TAKAHIRO, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    Japan

  • May2013, 15th International Topical Meeting on Nuclear Reactor Thermalhydraulics (NURETH-15), Best Poster Award, Void Distribution and Bubble Motion in Bubbly Flows in a 4 X 4 Rod Bundle

    HOSOKAWA SHIGEO, HAYASHI KOSUKE, TOMIYAMA AKIO

    The “best” poster based on the structure of the presentation (visual quality), Italy

  • Apr.2013, The Japan Society of Mechanical Engineers, JSME Medal for Outstanding Paper, フォトブリーチング分子タグ法による乱れエネルギ収支の評価

    MIZUMOTO HIROKI, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    日本機械学会論文集, 77巻, 784号, B編(2011年12月), Japan

  • Aug.2005, 日本混相流学会, 2004年度日本混相流学会賞 論文賞, 鉛直円管内低濃度固気二相流の乱流変調に及ぼす相間相対速度の影響

    細川 茂雄, 冨山 明男

  • Mar.2004, 日本原子力学会, 第36回日本原子力学会賞 論文賞, Shape and Rising Velocities of Single Bubble risingnthrough an Inner Subchannel

    冨山 明男, 細川 茂雄

Published Papers

  • Viscous Stress and Pressure Acting on Interface of Contaminated Drop

    HOSOKAWA SHIGEO, SHIGEKANE GAKU, HAYASHI KOSUKE, TOMIYAMA AKIO

    May 2019, 10th International Conference on Multiphase Flow (ICMF2019), 2 pages, English

    [Refereed]

    Research paper (international conference proceedings)

  • Numerical Simulations of Flows in Cerebral Aneurysms Using the Lattice Boltzmann Method with Single- and Multiple-Relaxation Time Collision Models

    OSAKI SUSUMU, HAYASHI KOSUKE, KIMURA HIDEHITO, SETA TAKESHI, KOHMURA EIJI, TOMIYAMA AKIO

    May 2019, Computers & Mathematics with Applications, in press, English

    [Refereed]

    Research paper (scientific journal)

  • Effects of Surfactant on Bubble Breakup at T-Junction and Characteristics of Taylor Flows in Mini and Micro Channels

    HAYASHI KOSUKE, SUZUKI DAIKI, KURIMOTO RYO, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    May 2019, 10th International Conference on Multiphase Flow (ICMF2019), 2 pages, English

    [Refereed]

    Research paper (international conference proceedings)

  • Effects of Initial Liquid Height on Gas Holdup in an Air-Water Bubble Column

    KOBAYASHI NOBUYA, HASHIDA MASAAKI, HAYASHI KOSUKE, MARASHDEH QUSSAI, TOMIYAMA AKIO

    May 2019, 10th International Conference on Multiphase Flow (ICMF2019), 6 pages, English

    [Refereed]

    Research paper (international conference proceedings)

  • Combined Effects of Surfactant and Electrolyte on Mass Transfer from Single Carbon-Dioxide Bubbles in Vertical Pipes

    HORI YOHEI, BOTHE DIETER, HAYASHI KOSUKE, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    May 2019, 10th International Conference on Multiphase Flow (ICMF2019), 9 pages, English

    [Refereed]

    Research paper (international conference proceedings)

  • Characterization of Velocity Field External to Tube Bundle Using Spatial Filter Velocimetry based on Variable Meshing Scheme

    ROCHA DOUGLAS, KANIZAWA FABIO, HAYASHI KOSUKE, HOSOKAWA SHIGEO, TOMIYAMA AKIO, RIBATSKI GHERHARDT

    May 2019, 10th International Conference on Multiphase Flow (ICMF2019), 9 pages, English

    [Refereed]

    Research paper (international conference proceedings)

  • Hydrodynamic Sound Generated by Bubble Collapse in Subcooled Liquid Flow

    HAYASHI KOSUKE, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    Mar. 2019, Multiphase Science and Technology, 31 (1), 61 - 71, English

    [Refereed]

    Research paper (scientific journal)

  • Rise Velocities of Single Bubbles in a Narrow Channel between Parallel Flat Plates

    HASHIDA MASAAKI, HAYASHI KOSUKE, TOMIYAMA AKIO

    Feb. 2019, Internation Journal of Multiphase Flow, 111, 285 - 293, English

    [Refereed]

    Research paper (scientific journal)

  • Experiments on Removal of Hydrophilic Fine Particles in Bubbly Flow

    KAWABATA MASATOSHI, TSUKAGUCHI YUICHI, KANG JYUNGYU, HAYASHI KOSUKE, TOMIYAMA AKIO

    Feb. 2019, ISIJ International, 59 (2), 209 - 215, English

    [Refereed]

    Research paper (scientific journal)

  • Detection of Hemodynamic Characteristics Before Growth in Growing Cerebral Aneurysms by Analyzing Time-of-Flight Magnetic Resonance Angiography Images Alone: Preliminary Results

    KIMURA HIDEHITO, HAYASHI KOSUKE, TANIGUCHI MASAAKI, HOSODA KOHKICHI, FUJITA ATSUSHI, SETA TAKESHI, TOMIYAMA AKIO, KOHMURA EIJI

    Feb. 2019, World Neurosurgery, 122, e1439 - e1448, English

    [Refereed]

    Research paper (scientific journal)

  • Clear Detection of Thin-Walled Regions in Unruptured Cerebral Aneurysms by Using Computational Fluid Dynamics

    KIMURA HIDEHITO, TANIGUCHI MASAAKI, HAYASHI KOSUKE, FUJIMOTO YOSUKE, FUJITA ATSUSHI, SASAYAMA TAKASHI, TOMIYAMA AKIO, KOHMURA EIJI

    Jan. 2019, World Neurosurgery, 121, e287 - e295, English

    [Refereed]

    Research paper (scientific journal)

  • Numerical Investigation of Bubble Shape and Flow Filed of Gas–Liquid Slug Flow in Circular Microchannels

    KURIMOTO RYO, HAYASHI KOSUKE, MINAGAWA HISATO, TOMIYAMA AKIO

    Dec. 2018, International Journal of Heat and Fluid Flow, 74, 28 - 35, English

    [Refereed]

    Research paper (scientific journal)

  • Shapes of Single Bubbles in Infinite Stagnant Liquids Contaminated with Surfactant

    AOYAMA SHOHEI, HAYASHI KOSUKE, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    Sep. 2018, Experimental Thermal and Fluid Science, 96, 460 - 469, English

    [Refereed]

    Research paper (scientific journal)

  • Evaluation of Adsorption of Surfactant at a Moving Interface of a Single Spherical Drop

    HOSOKAWA SHIGEO, HAYASHI KOSUKE, TOMIYAMA AKIO

    Elsevier, Sep. 2018, Experimental Thermal and Fluid Science, 96, 397 - 405, English

    [Refereed]

    Research paper (scientific journal)

  • On CCFL at a PWR Hot-Leg Pipe Geometry and Comparison Between Results in COLLIDER 1/4th- and Kobe 1/15th-Scaled Facilities

    AL ISSA SULEIMAN, MURASE MICHIO, TOMIYAMA AKIO, HAYASHI KOSUKE, MACIAN-JUAN RAFAEL

    Aug. 2018, Nuclear Science and Engineering, 193, 147 - 159, English

    [Refereed][Invited]

    Research paper (scientific journal)

  • Diagnostics of flow about a contaminated single drop using spatiotemporal filter velocimetry

    HOSOKAWA SHIGEO, SHIGEKANE GAKU, HAYASHI KOSUKE, TOMIYAMA AKIO

    Jul. 2018, 19th Symposium on Applications of Laser and Imaging Techniques to Fluid Mechanics, Lisbon 2016, English

    [Refereed]

    Research paper (international conference proceedings)

  • Wall and Interfacial Shear Stress of Swirling Annular Flow

    FUNAHASHI HAYATO, HAYASHI KOSUKE, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    Apr. 2018, 8th European-Japanese Twp-Phase Flow Group Meeting, EJTPFGM-8, 1, English

    [Refereed]

    Research paper (international conference proceedings)

  • Numerical Simulation of a Drop in Contaminated Systems from low concentration to CMC

    HAYASHI KOSUKE, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    Apr. 2018, 8th European-Japanese Twp-Phase Flow Group Meeting, EJTPFGM-8, 1, English

    [Refereed]

    Research paper (international conference proceedings)

  • Interfacial and wall friction factors of swirling annular flow in a vertical pipe

    FUNAHASHI HAYATO, VIEROW KIRKLAND KAREN, HAYASHI KOSUKE, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    Apr. 2018, Nuclear Engineering and Design, 330, 97 - 105, English

    [Refereed]

    Research paper (scientific journal)

  • Generation of Micro-bubbles from a heated thin wire

    HOSOKAWA SHIGEO, YOSHIDA MASATAKA, TOMIYAMA AKIO, AKITA TOMOHIRO, MAEDA YASUNARI

    Apr. 2018, 8th European-Japanese Two-Phase Flow Group Meeting, English

    [Refereed]

    Research paper (international conference proceedings)

  • Semi-Empirical Correlation for Counter-Current Flow Limitation at the Upper or Lower End of Vertical Pipes

    GODA RAITO, HAYASHI KOSUKE, VIEROW KIRKLAND KAREN, MURASE MICHIO, TOMIYAMA AKIO

    Mar. 2018, Nuclear Engineering and Design, 328, 182 - 187, English

    [Refereed]

    Research paper (scientific journal)

  • Analytical and Numerical Studies of the Boundary Slip in the Immersed Boundary-Thermal Lattice Boltzmann Method

    SETA TAKESHI, HAYASHI KOSUKE, TOMIYAMA AKIO

    Mar. 2018, International Journal of Numerical Methods in Fluids, 86, 454 - 490, English

    [Refereed]

    Research paper (scientific journal)

  • Effects of Surfactant on Lift Coefficients of Bubbles in Linear Shear Flows

    HAYASHI KOSUKE, TOMIYAMA AKIO

    Feb. 2018, International Journal of Multiphase Flow, 99, 86 - 93, English

    [Refereed]

    Research paper (scientific journal)

  • Effects of Azimuthal Angle of Aeration Hole and Liquid Viscosity on Flows Inside and Outside an Air Diffuser Pipe

    SATO RYO, HAYASHI KOSUKE, TOMIYAMA AKIO

    Jan. 2018, Kagaku Kogaku Ronbunshu, 44 (1), 59 - 66, Japanese

    [Refereed]

    Research paper (scientific journal)

  • Turbulent property of air-water bubbly flow in a 2X2 rod bundle

    HOSOKAWA SHIGEO, TOMIYAMA AKIO

    Dec. 2017, 10th International Symposium on Measurement Techniques for Multiphase Flow (ISMTMF2017), English

    [Refereed]

    Research paper (international conference proceedings)

  • Mass transfer from single carbon-dioxide bubbles in electrolyte aqueous solutions in vertical pipes

    Yohei Hori, Kosuke Hayashi, Shigeo Hosokawa, Akio Tomiyama

    Mass transfer rates, k(L), of single carbon-dioxide (CO2) bubbles rising through vertical pipes filled with electrolyte aqueous solutions were measured to investigate the effects of the presence of electrolyte on k(L) Sodium chloride (NaCI) was used for electrolyte and its concentration was varied from 3.5 to 14 wt.%. The pipe diameters, D, were 12.5, 18.2 and 25.0 mm and the bubble diameter, d, ranged from 5 to 25 mm. The diameter ratio, lambda(= d/D), was varied from 0.2 to 1.7, to cover various bubble shapes, i.e. ellipsoidal, cap, semi-Taylor bubbles and Taylor bubbles. The conclusions obtained are as follows: (1) k(L) in the NaCI aqueous solutions decreases with increasing the NaCI concentration mainly due to the reduction of the diffusion coefficient of CO2 in the liquid phase, (2) the Sherwood numbers, Sh, of Taylor bubbles of L/D > 1 in the NaCI aqueous solutions can be well evaluated using the available Sherwood number correlation for clean Taylor bubbles, where L is the length of a Taylor bubble, (3) Sh of ellipsoidal, cap, semi-Taylor bubbles and Taylor bubbles of LID <= 1 in the clean water and NaCI aqueous solutions can be well correlated in terms of the Peclet number and the dimensionless bubble diameter d* = d/d(T), where d(T) is the bubble diameter at the transition from the ellipsoidal-cap bubble regime to the semi-Taylor bubble regime, and (4) the Sh correlations give good predictions for long-term bubble dissolution processes in NaCI aqueous solutions. (c) 2017 Elsevier Ltd. All rights reserved.

    PERGAMON-ELSEVIER SCIENCE LTD, Dec. 2017, INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 115, 663 - 671, English

    [Refereed]

    Research paper (scientific journal)

  • Experimental Evaluation of Marangoni stress and surfactant concentration at interface of contaminated single drops using spatiotemporal filter velocimetry

    HOSOKAWA SHIGEO, MASUKURA YUYA, HAYASHI KOSUKE, TOMIYAMA AKIO

    Dec. 2017, International Journal of Multiphase Flow, 97, 157 - 167, English

    [Refereed]

    Research paper (scientific journal)

  • Evaluation of Adsorption of Surfactant at a Drop Interface using Spatiotemporal Filter Velocimetry

    HOSOKAWA SHIGEO, OKAMOTO RYOTA, HAYASHI KOSUKE, TOMIYAMA AKIO

    Dec. 2017, 10th International Symposium on Measurement Techniques for Multiphase Flow (ISMTMF2017), English

    [Refereed]

    Research paper (international conference proceedings)

  • Effects of azimuthal angle of aeration hole on flows inside and outside an air diffuser pipe

    Ryo Sato, Tatsuya Miyayoshi, Kosuke Hayashi, Akio Tomiyama

    Experiments on aeration from a bubble diffuser pipe having five aeration holes are carried out to investigate effects of the azimuthal angle of the holes on flows inside and outside the pipe. The azimuthal angle is varied by rotating the pipe. When the hole angle becomes larger than a certain angle, the liquid height inside the pipe is fixed just below the holes, which results in the prevention of slugging inside the pipe. The effects of hole angle on bubble generation mode and bubble size are small except for the large hole angles, at which generated bubbles are to break up due to an interaction between the bubbles and the pipe wall. Hence uniform aeration is easily realized just by rotating the pipe to some extent. Uniform aeration is also realized with a longer diffuser pipe having ten aeration holes by rotating the pipe. The power in aeration is evaluated from the pressure difference and the total gas inflow. Although the decrease in the hole diameter is also effective to realize the uniform aeration, the increase in the azimuthal angle is superior to the former from the point of view of energy saving.

    ELSEVIER SCIENCE INC, Dec. 2017, EXPERIMENTAL THERMAL AND FLUID SCIENCE, 89, 90 - 97, English

    [Refereed]

    Research paper (scientific journal)

  • Spatiotemporal Flow Structure of Counter-Current Two-Phase Annular Flows

    GODA RAITO, KATSUYA MORI, HAYASHI KOSUKE, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    Nov. 2017, ANS Winter Meeting and Nuclear Technology Expo, 2 pages, English

    [Refereed]

    Research paper (international conference proceedings)

  • Lift force acting on single bubbles in linear shear flows

    S. Aoyama, K. Hayashi, S. Hosokawa, D. Lucas, A. Tomiyama

    Lift coefficients, C-L, of single bubbles in linear shear flows are measured to investigate effects of the bubble shape, the liquid velocity gradient and the fluid property on C-L. The range of the Morton number, M, tested is from logM = -6.6 to -3.2. The shapes of bubbles are spherical and ellipsoidal. A correlation of bubble aspect ratio for single bubbles in infinite stagnant liquids proposed in our previous study can give good evaluations for bubbles in the linear shear flows. The C-L of spherical bubbles at low bubble Reynolds numbers, Re, depend on the dimensionless shear rate Sr and Re and decrease with increasing Re. These characteristics agree with the Legendre-Magnaudet correlation. The use of a single dimensionless group such as Re, the Eotvos number, the Weber number and the Capillary number cannot correlate C-L of non-spherical bubbles. The trend of the critical Re for the reversal of the sign of C-L is the same as that for the onset of oscillation of bubble motion, which supports the mechanism proposed by Adoua et al., at least within the range of -6.6 <= logM <= -3.2. An experimental database of C-L is provided for validation of available C-L models and CFD. (C) 2017 Elsevier Ltd. All rights reserved.

    PERGAMON-ELSEVIER SCIENCE LTD, Nov. 2017, INTERNATIONAL JOURNAL OF MULTIPHASE FLOW, 96, 113 - 122, English

    [Refereed]

    Research paper (scientific journal)

  • Improvement of separator performance with modified pick-off ring and swirler

    H. Funahashi, K. Hayashi, S. Hosokawa, A. Tomiyama

    The swirler and the 1st pick-off ring (POR) of a gas-liquid separator are improved to reduce the pressure drop, DPT, in the separator while keeping the flow rate of separated liquid, WST, high. Two swirler designs are presented, i.e. V8 (swirler with eight vanes) and V6 (swirler with six vanes), whose diameters of the hubs supporting the vanes are smaller than that of the normal swirler, N8, and the nose shape of vanes are coned. The swirlers are installed into a one-fifth scale separator with three PORs. The gap width of the 1st POR is reduced to the value of the liquid film thickness in the barrel of the separator and the rear shape of the 1st POR is smoothed. The performance of the downscaled separator with the proposed swirlers and the 1st POR are evaluated under the nominal operating condition of the Hyper BWR and a higher quality condition. As a result, the following conclusions are obtained in the present experimental range: (1) DPT in the separator is reduced by 23% using V8, and V8 gives the same WST as N8, confirming that the decrease in the hub diameter and the coned-nose shape of vanes are effective, (2) V6 can realize further reduction of DPT (38%) without deteriorating the liquid-separation rate, (3) the reduced gap width of the 1st POR and a tapered shape of the downstream side of the 1st POR are also effective to decrease the pressure drop, i.e. the improved POR decreases DPT by 42% and 54% by combining with V8 and V6, respectively, and (4) the improved separators also show good performances in DPT and WST at the higher quality condition. (C) 2017 Elsevier B.V. All rights reserved.

    ELSEVIER SCIENCE SA, Oct. 2017, NUCLEAR ENGINEERING AND DESIGN, 322, 360 - 367, English

    [Refereed]

    Research paper (scientific journal)

  • On CCFL in Collider Test Facility: CCFL Results at PWR Hot-Leg Pipe Geometry with 190 mm Diameter

    AL ISSA SULEIMAN, MURASE MICHIO, TOMIYAMA AKIO, HAYASHI KOSUKE, MACIAN-JUAN RAFAEL

    Sep. 2017, 17th International Topical Meeting on Nuclear Reactor Thermal Hydraulics(NURETH-17), 14 pages, English

    [Refereed]

    Research paper (international conference proceedings)

  • Correlation of interfacial friction for countercurrent gas-liquid flows in nearly horizontal pipes

    Michio Murase, Yasunori Yamamoto, Takayoshi Kusunoki, Ikuo Kinoshita, Akio Tomiyama

    We previously developed a one- dimensional (1-D) computation method with parameters adjusted from CCFL (countercurrent flow limitation) data in hot leg and pressurizer surge line models to generalize the prediction method for CCFL in nearly horizontal pipes. In the 1-D computation method, the constant value for the interfacial friction coefficient of fi = 0.03 was used. On the other hand, many correlations for the interfacial friction coefficient in horizontal and inclined pipes have been proposed. In this study, therefore, we carried out 1-D computations for CCFL in nearly horizontal pipes with the diameter of D = 0.03-0.75 m and the length to diameter ratio of L/D = 4.5-63 by using some selected correlations for the interfacial friction coefficient, which are a function of the gas or liquid Reynolds number. As a result, we confirmed that the correlation of the interfacial friction coefficient in terms of the Reynolds number cannot be used for large Reynolds numbers but fi = 0.03 can be used for the wide range of diameters. To improve the correlation with the gas or liquid Reynolds number, we proposed a modified correlation. (C) 2017 Elsevier B.V. All rights reserved.

    ELSEVIER SCIENCE SA, Aug. 2017, NUCLEAR ENGINEERING AND DESIGN, 320 (15), 418 - 426, English

    [Refereed]

    Research paper (scientific journal)

  • 鉛直管内での気液対向流に対する界面摩擦係数

    KUSUNOKI KIYOSHI, YAMAMOTO YASUNORI, MURASE MICHIO, HAYASHI KOSUKE, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    Jun. 2017, 混相流, 31 (1), 37 - 46, Japanese

    [Refereed]

    Research paper (scientific journal)

  • 鉛直管での気液対向流制限に対する流体物性の影響

    MURASE MICHIO, KUSUNOKI KIYOSHI, YAMAMOTO YASUNORI, GODA RAITO, HAYASHI KOSUKE, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    Jun. 2017, 混相流, 31 (2), 152 - 161, Japanese

    [Refereed]

    Research paper (scientific journal)

  • Terminal Velocities of Single Bubble Rising through Stagnant Liquids and Slurry in a Hele-Shaw Cell

    HASHIDA MASAAKI, HAYASHI KOSUKE, TOMIYAMA AKIO

    Jun. 2017, 9th World Conference on Experimental Heat Transfer, Fluid Mechanics and Thermodynamic (ExHFT-9), 9 pages, English

    [Refereed]

    Research paper (international conference proceedings)

  • Pressure Drop in Air-Water Two-Phase Flows in Horizontal U-Bends

    HAYASHI KOSUKE, SUZUKI DAIKI, MIYACHI NAOTO, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    Jun. 2017, 9th World Conference on Experimental Heat Transfer, Fluid Mechanics and Thermodynamic (ExHFT-9), 8 pages, English

    [Refereed]

    Research paper (international conference proceedings)

  • Evaluation of Adsorption of Surfactant at a Moving Interface of a Single Spherical Drop

    HOSOKAWA SHIGEO, OKAMOTO RYOTA, HAYASHI KOSUKE, TOMIYAMA AKIO

    Jun. 2017, 9th World Conference on Experimental Heat Transfer, Fluid Mechanics and Thermodynamic (ExHFT-9), 10 pages, English

    [Refereed]

    Research paper (international conference proceedings)

  • Mass transfer from single carbon dioxide bubbles in alcohol aqueous solutions in vertical pipes

    Jiro Aoki, Yohei Hori, Kosuke Hayashi, Shigeo Hosokawa, Akio Tomiyama

    Mass transfer rates, k(L), of single carbon dioxide bubbles contaminated with alcohols in vertical pipes of 12.5, 18.2 and 25.0 mm diameters were measured to investigate effects of the carbon chain length of the alcohols on kL. Four straight-chain alcohols, i.e. 1-pentanol, 1-heptanol, 1-octanol and 1-decanol, were used. A wide range of bubble diameter, d, covered ellipsoidal and Taylor bubbles. Effects of the alcohol concentration, C-sol, on k(L) were also investigated to make clear the values of C-sol corresponding to fully contaminated conditions. As a result, the following conclusions were obtained. (1) The kL of bubbles contaminated with alcohols decrease with increasing C-sol, and they become constant at high C-sol, i.e. bubbles in the latter C-sol ranges are fully-contaminated from the point of view of mass transfer. On the other hand, the rising velocities decrease with increasing C-sol due to the reduction of surface tension even when k(L) are independent of Cob (2) The k(L). of ellipsoidal bubbles fully-contaminated with alcohols decrease with increasing the carbon chain length, whereas the reduction rate of kL becomes smaller and smaller as the carbon chain length increases. The k(L). of fully-contaminated ellipsoidal bubbles can be expressed by accounting for the adsorption constant of alcohol in an available kL correlation. (3) The increase in the carbon chain length also decreases k(L) of fully-contaminated Taylor bubbles, whereas the effect of carbon chain length on k(L), becomes smaller with increasing d. (C) 2017 Elsevier Ltd. All rights reserved.

    PERGAMON-ELSEVIER SCIENCE LTD, May 2017, INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 108 (Part B), 1991 - 2001, English

    [Refereed]

    Research paper (scientific journal)

  • Effects of electrolyte on mass transfer from single carbon-dioxide bubbles in vertical pipes

    HORI YOHEI, HAYASHI KOSUKE, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    May 2017, Third International Symposium on Multiscale Multiphase Process Engineering (MMPE2017), 6 pages, English

    [Refereed]

    Research paper (international conference proceedings)

  • Preliminary study on numerical simulations for temperature field of steam-air mixture in a circular tube with condensation

    UTANOHARA YOICHI, YAMAMOTO YASUNORI, MURASE MICHIO, MORI KATSUYA, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    Apr. 2017, 2017 International Congress on Advances in Nuclear Power Plants (ICAPP 2017), English

    [Refereed]

    Research paper (international conference proceedings)

  • Experimental Investigation of Temperature Distribution in Condensing Steam-Air Flow in a Circular Tube

    MORI KATSUYA, HAYASHI KOSUKE, HOSOKAWA SHIGEO, TOMIYAMA AKIO, UTANOHARA YOICHI, YAMAMOTO YASUNORI, MURASE MICHIO

    Apr. 2017, 2017 International Congress on Advances in Nuclear Power Plants (ICAPP 2017), English

    [Refereed]

    Research paper (international conference proceedings)

  • Effects of column diameter and liquid height on gas holdup in air-water bubble columns

    Shohei Sasaki, Kengo Uchida, Kosuke Hayashi, Akio Tomiyama

    Experiments on the total gas holdup, alpha(G), in air-water cylindrical bubble columns were carried out to investigate effects of the column diameter, D-H, and the initial liquid height, H-0, on alpha(G). Ranges of D-H and H-0 were 160 <= D-H <= 2000 mm and 400 <= H-0 <= 4000 mm, respectively. The superficial gas velocity, J(G), was varied from 0.025 to 0.35 m/s. The characteristics of gas holdup showed that all the flows in the present experiments were pure heterogeneous. The following conclusions were obtained for alpha(G) in air-water bubble columns: (1) the effects of D-H and H-0 on alpha(G) are negligible when scaling up from small to large bubble columns, provided that alpha(G) in the small columns are obtained for D-H >= 200 mm and Ho 2200 mm. The height-to-diameter ratio is useless in evaluation of the critical height, above which aG does not depend on H-0, (2) for the above ranges of D-H and H-0, Akita-Yoshida's and Koide's correlations can give good evaluations of alpha(G) for a wide range of J(G) by tuning the model constants, (3) for D-H < 200 mm, the decrease in D-H increases the population of large bubbles, which results in the decrease in alpha(G), and (4) for H-0 less than or similar to 2200 mm and D-H >= 200 mm, alpha(G) at a constant J(G) decreases with increasing H-0 and approaches an asymptotic value, and the Froude number using J(G) and H-0 as the characteristic scales well correlates alpha(G) in this regime. (C) 2016 Elsevier Inc. All rights reserved.

    ELSEVIER SCIENCE INC, Apr. 2017, EXPERIMENTAL THERMAL AND FLUID SCIENCE, 82, 359 - 366, English

    [Refereed]

    Research paper (scientific journal)

  • Interfacial Friction Factor for Counter-Current Gas-Liquid Flows in Vertical Pipes

    KUSUNOKI TAKAYOSHI, YAMAMOTO YASUNORI, MURASE MICHIO, HAYASHI KOSUKE, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    日本混相流学会, Mar. 2017, 混相流, 31 (1), 37 - 46, Japanese

    [Refereed]

    Research paper (scientific journal)

  • Prediction of Countercurrent Flow Limitation and Its Uncertainty in Horizontal and Slightly Inclined Pipes

    Michio Murase, Yoichi Utanohara, Takayoshi Kusunoki, Yasunori Yamamoto, Dirk Lucas, Akio Tomiyama

    We proposed prediction methods for countercurrent flow limitation (CCFL) in horizontal and slightly inclined pipes with one- dimensional (1- D) computations and uncertainty of computed CCFL. In this study, we applied the proposed methods to a full-scale pressurizer surge line [ inclination angle theta = 0.6 deg, diameter D = 300 mm, and ratio of the length to the diameter (L/D) = 63] in a specific pressurized water reactor, performed 1-D computations and three-dimensional (3-D) numerical simulations, and found that uncertainties caused by effects of the diameter and fluid properties on CCFL were small. We also applied the proposed methods to experiments for hot-leg and surge line models (theta = 0 and 0.6 deg, D = 0.03 to 0.65 m, and L/D = 4.5 to 63) to generalize them, performed 1-D computations, and found that uncertainties caused by effects of theta and L on CCFL were large due to the setting error for theta and differences among experiments. This shows that a small-scale air-water experiment with the same theta and L/D as those in an actual plant is effective to reduce the uncertainty of CCFL prediction.

    AMER NUCLEAR SOC, Feb. 2017, NUCLEAR TECHNOLOGY, 197 (2), 140 - 157, English

    [Refereed]

    Research paper (scientific journal)

  • 鉛直管内における気液対向流制限

    YAMAMOTO YASUNORI, MURASE MICHIO, HAYASHI KOSUKE, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    Dec. 2016, 混相流, 30 (4), 392 - 401, Japanese

    [Refereed]

    Research paper (scientific journal)

  • Study on Two-Phase Swirling Flows in a Gas-Liquid Separator with Three Pick-off Rings

    FUNAHASHI HAYATO, HAYASHI KOSUKE, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    Nov. 2016, Nuclear Engineering and Design, 308, 205 - 213, English

    [Refereed]

    Research paper (scientific journal)

  • Effects of Particle Concentration and Slurry Height on Gas Holdup in a Slurry Bubble Column

    SHOHEI SASAKI, KENGO UCHIDA, HAYASHI KOSUKE, TOMIYAMA AKIO

    Nov. 2016, Journal of Chemical Engineering of Japan, 49 (9), 824 - 830, English

    [Refereed]

    Research paper (scientific journal)

  • A Semi-Empirical Correlation for Counter-Current Flow Limitation in a Vertical Pipe

    MORI KATSUYA, HAYASHI KOSUKE, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    Nov. 2016, ANS Conference 2016 Winter Meeting and Nuclear Technology Expo, 3 pages, English

    [Refereed]

    Research paper (international conference proceedings)

  • 時空間フィルタ流速計(SFV)を用いた混相流の速度分布計測

    HOSOKAWA SHIGEO, TOMIYAMA AKIO

    化学工学会, Aug. 2016, 化学工学, Vol. 80 (No. 8), pp. 488 - 491, Japanese

    [Invited]

    Research paper (scientific journal)

  • Effect of Bubbles on Turblence Kinetic Energy Budget in Vertical Duct flow

    HOSOKAWA SHIGEO, KARASAWA HIROKI, IWAI RYOSUKE, TOMIYAMA AKIO

    Jul. 2016, 18th Symposium on Applications of Laser Techniques to Fluid Mechanics, Lisbon 2016, English

    [Refereed]

    Research paper (international conference proceedings)

  • Distribution characteristics of two-phase refrigerant in a return junction connecting parallel narrow channels

    MURAKAMI HIROKI, ISHIBASHI AKIRA, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    The Japan Society of Mechanical Engineers, Jun. 2016, Transactions of the JSME, Vol. 82 (No. 838), 15 - 00685, Japanese

    [Refereed]

    Research paper (scientific journal)

  • Gaslift Pump making use of Phase Change of Working Fluid

    HOSOKAWA SHIGEO, FUJIMOTO SHUDAI, TOMIYAMA AKIO

    Jun. 2016, Applied Thermal Engineering, Vol. 103, pp. 1119 - 1125, English

    [Refereed]

    Research paper (scientific journal)

  • Effects of Subcooling on Sound Generation by Vapor Bubbles in Water

    HAYASHI KOSUKE, TATEYAMA MASAYA, IKEUCHI KAZUTAKA, HOSOKAWA SHIGEO, TOMIYAMA AKIO, HIROTSU MAKOTO, TAKEDA NOBUHIRO

    Jun. 2016, Multiphase Science and Technology, 27 (1), 67 - 75, English

    [Refereed]

    Research paper (scientific journal)

  • Numerical Simulation of Surfactant Concentration at an Interface of Single Spherical Drop

    HAYASHI KOSUKE, MASUKURA YUYA, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    May 2016, 9th International Conference on Multiphase Flow, No. 262, 6 pages, English

    [Refereed]

    Research paper (international conference proceedings)

  • Mass Transfer from Single Carbon Dioxide Bubbles in Water-Alchol Solutions in a Verical Pipe

    HORI YOHEI, AOKI JIRO, HAYASHI KOSUKE, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    May 2016, 9th International Conference on Multiphase Flow, No. 245, 6 pages, English

    [Refereed]

    Research paper (international conference proceedings)

  • Lift Force Acting on Single Bubbles in Linear Shear Flows

    AOYAMA SHOHEI, ZUN IZTOK, HAYASHI KOSUKE, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    May 2016, 9th International Conference on Multiphase Flow, No. 333, 6 pages, English

    [Refereed]

    Research paper (international conference proceedings)

  • Experimental Evaluation of Surfacant Concentration at an Interface of Single Spherical Drop

    HOSOKAWA SHIGEO, MASUKURA YUYA, HAYASHI KOSUKE, TOMIYAMA AKIO

    May 2016, 9th International Conference on Multiphase Flow, No. 262, 6 pages, English

    [Refereed]

    Research paper (international conference proceedings)

  • Effects of Azimuthal Angle of Aeration Holes on Flows inside and outside a Bubble Diffuser Pipe

    SATO RYO, MIYAYOSHI TATSUYA, HAYASHI KOSUKE, TOMIYAMA AKIO

    May 2016, 9th International Conference on Multiphase Flow, No. 168, 6 pages, English

    [Refereed]

    Research paper (international conference proceedings)

  • Effects of Liquid Height on Gas Holdup in Air–Water Bubble Column

    SASAKI SHOHEI, HAYASHI KOSUKE, TOMIYAMA AKIO

    Apr. 2016, Experimental Thermal and Fluid Science, 72, 67 - 74, English

    [Refereed]

    Research paper (scientific journal)

  • Development of a High-Efficiency Gas-Liquid Separator for Room Air Conditioner

    MURAKAMI HIROKI, MAKINO HIROAKI, HAYAMARU YASUHIDE, SAITOU TADASHI, NAGAI HIRONORI, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    THE JAPANESE SOCIETY FOR MULTIPHASE FLOW, Mar. 2016, JAPANESE JOURNAL OF MULTIPHASE FLOW, Vol. 30 (No. 1), pp. 49 - 56, Japanese

    [Refereed]

    Research paper (scientific journal)

  • Shapes of Ellipsoidal Bubbles in Infinite Stagnant Liquids

    AOYAMA SHOHEI, HAYASHI KOSUKE, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    Mar. 2016, International Journal of Multiphase Flow, 79, 23 - 30, English

    [Refereed]

    Research paper (scientific journal)

  • Effects of Liquid-Separation Components on Separation Performance of a Steam Separator

    KATONO KENICHI, TAMARU HAYATO, HOSOKAWA SHIGEO, HAYASHI KOSUKE, TOMIYAMA AKIO

    Dec. 2015, Japanese journal of Multiphase Flow, 29 (4), 343 - 350, Japanese

    [Refereed]

    Research paper (scientific journal)

  • Two-Phase Swirling Flow in a Gas-Liquid Separator

    FUNAHASHI HAYATO, HAYASHI KOSUKE, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    Nov. 2015, ANS Conference 2015 Winter Meeting and Nuclear Technology Expo, 2 pages, English

    [Refereed]

    Research paper (international conference proceedings)

  • Mass Transfer from Single Taylor Bubbles in Minichannels

    KASTENS SVEN, HOSODA SHOGO, SCHLUTER MICHAEL, TOMIYAMA AKIO

    Nov. 2015, Chemical Engineering & Technology, 38 (11), 1925 - 1932, English

    [Refereed][Invited]

    Research paper (scientific journal)

  • Effects of Surfactants on Mass Transfer from Single Carbon Dioxide Bubbles in Vertical Pipes

    AOKI JIRO, HAYASHI KOSUKE, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    Nov. 2015, Chemical Engineering and Technology, 38 (11), 1955 - 1964, English

    [Refereed][Invited]

    Research paper (scientific journal)

  • Evaluation of Interfacial Shear Stress of Single Drop Using Spatiotemporal Filter Velocimetry

    HOSOKAWA SHIGEO, MASUKURA Yuya, HAYASHI KOSUKE, TOMIYAMA AKIO

    Oct. 2015, 7th European-Japanese Two-Phase Flow Group Meeting, 3 pages, English

    [Refereed]

    Research paper (international conference proceedings)

  • Effects of Subcooling on Sound Generation by Vapor Bubbles in Water

    HAYASHI KOSUKE, TATEYAMA MASAYA, IKEUCHI KAZUTAKA, HOSOKAWA SHIGEO, TOMIYAMA AKIO, HIROTSU MAKOTO, TAKEDA NOBUHIRO

    Oct. 2015, 7th European-Japanese Two-Phase Flow Group Meeting, 9 pages, English

    [Refereed][Invited]

    Research paper (international conference proceedings)

  • Generation of submicron bubbles in a pressurized dissolution method

    HOSOKAWA SHIGEO, BABA YUJI, TOMIYAMA AKIO, MAEDA YASUNARI, ITO YOSHIHIRO

    Sep. 2015, 9th International Symposium on Measurement Techniques for Multiphase Flows, ISTMF2015, English

    [Refereed]

    Research paper (international conference proceedings)

  • Effects of Liquid Viscosity on Flows inside and outside a Bubble Diffuser Pipe

    SATO RYO, HAYASHI KOSUKE, TOMIYAMA AKIO

    Sep. 2015, Experimental Thermal and Fluid Science, 66, 197 - 205, English

    [Refereed]

    Research paper (scientific journal)

  • Effects of Liquid Height on Gas Holdup in a Rectangular Bubble Column

    SASAKI SHOHEI, HAYASHI KOSUKE, TOMIYAMA AKIO

    Sep. 2015, 9th International Symposium on Measurement Techniques for Multiphase Flow, 2 pages, English

    [Refereed]

    Research paper (international conference proceedings)

  • Countercurrent Flow Limitation in Slightly Inclined Pipes With Elbows

    MURASE MICHIO, KINOSHITA IKUO, KUSUNOKI TAKAYOSHI, LUCAS DIRK, TOMIYAMA AKIO

    Sep. 2015, ASME Journal of Nuclear Engineering and Radiation Science, 1 (4), 041009, 9 pages, English

    [Refereed]

    Research paper (scientific journal)

  • Motion of Contaminated Drops Falling onto Flat Plate

    HAYASHI KOSUKE, KITANO MASAAKI, DHAR ABHINAV, TOMIYAMA AKIO

    Jul. 2015, ASME-JSME-KSME Joint Fluids Engineering Conference 2015 (AJK2015-FED), AJK2015 - 21048, 2 pages, English

    [Refereed]

    Research paper (international conference proceedings)

  • Condensation Experiments for Counter-Current Flow Limitation in an Inverted U-Tube

    KUSUNOKI TAKAYOSHI, NOZUE TAKAHIRO, HAYASHI KOSUKE, HOSOKAWA SHIGEO, TOMIYAMA AKIO, MURASE MICHIO

    Jul. 2015, Journal of Nuclear Science and Technology, English

    [Refereed]

    Research paper (scientific journal)

  • Airlift Pump making use of Phase Change of Working Fluid

    HOSOKAWA SHIGEO, FUJIMOTO SHUDAI, TOMIYAMA AKIO

    Jul. 2015, ASME-JSME-KSME Joint Fluid Engineering Conference 2015 (AJK 2015), English

    [Refereed]

    Research paper (international conference proceedings)

  • Dissolution of Single Carbon Dioxide Bubbles in Glycerol-Water Solution

    HOSODA SHOGO, TRYGGVASON GRETAR, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    Jun. 2015, Journal of Chemical Engineering of Japan, Vol. 48 (No. 6), pp. 418 - 426, English

    [Refereed]

    Research paper (scientific journal)

  • Implicit Temperature-Correction-based Immersed-Boundary Thermal Lattice-Boltzmann Method with Two Relaxation Times

    SETA TAKESHI, HAYASHI KOSUKE, TOMIYAMA AKIO

    May 2015, 23th International Conference on Nuclear Engineering (ICONE23), 10 pages, ICONE23 - 1039, English

    [Refereed]

    Research paper (international conference proceedings)

  • Gaslift Pump making use of Phase Change of Working Fluid

    HOSOKAWA SHIGEO, FUJIMOTO SHUDAI, TOMIYAMA AKIO

    May 2015, Japan-U.S. Seminar on Two-phase Flow Dynamics, English

    [Refereed]

    Research paper (international conference proceedings)

  • Mass Transfer from Single Carbon Dioxide Bubbles in Contaminated Water in a Vertical Pipe

    AOKI JIRO, HAYASHI KOSUKE, TOMIYAMA AKIO

    Apr. 2015, International Journal of Heat and Mass Transfer, 83, 652–658, English

    [Refereed]

    Research paper (scientific journal)

  • Effects of Fluid Properties on CCFL Characteristics at a Vertical Pipe Lower End

    KUSUNOKI TAKAYOSHI, MURASE MICHIO, FUJII YUKI, NOZUE TAKAHIRO, HAYASHI KOSUKE, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    Apr. 2015, Journal of Nuclear Science and Technology, 52 (6), 887 - 896, English

    [Refereed]

    Research paper (scientific journal)

  • Effects of Particle Diameter on Bubble Coalescence in a Slurry Bubble Column

    OJIMA SHIMPEI, SASAKI SHOHEI, HAYASHI KOSUKE, TOMIYAMA AKIO

    Mar. 2015, Journal of Chemical Engineering of Japan, 48 (3), 181 - 189, English

    [Refereed]

    Research paper (scientific journal)

  • Assessment of Numerical Treatments in Interface Capturing Simulations for Surface-tension-driven Interface Motion

    DHAR ABHINAV, SHIMADA NAOKI, HAYASHI KOSUKE, TOMIYAMA AKIO

    Mar. 2015, Journal of Computational Multiphase Flows, 7 (1), 15 - 32, English

    [Refereed]

    Research paper (scientific journal)

  • 時空間フィルタ流速計を用いた流路内速度分布及び流量の測定

    KITAHATA KYOSUKEYO, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    日本機械学会, Feb. 2015, 日本機械学会論文集, 81 (822), 14 - 00597, Japanese

    [Refereed]

    Research paper (scientific journal)

  • Generation mechanism of micro-bubbles in a pressurized dissolution method

    MAEDA Yasunari, HOSOKAWA SHIGEO, BABA YUJI, TOMIYAMA AKIO, ITO Yoshihiro

    Elsevier, Jan. 2015, Experimental Thermal and Fluid Science, 60, 201 - 207, English

    [Refereed]

    Research paper (scientific journal)

  • Distributions of void fraction and liquid velocity in air-water bubble column

    Shimpei Ojima, Kosuke Hayashi, Shigeo Hosokawa, Akio Tomiyama

    Multi-fluid simulations of heterogeneous bubbly flows in an air-water bubble column were carried out to verify the speculation that a heterogeneous bubbly flow is predictable without turbulence models such as k-epsilon and LES models, provided that the velocity fluctuation caused by large-scale vortical flow structures prevails over the bubble-induced and shear-induced turbulences. Experiments on the heterogeneous air-water bubbly flows in a rectangular bubble column were also carried out to obtain experimental data of the mean velocity, fluctuation velocity and void fraction for validation of the numerical method. A small LDV probe developed in our previous study was utilized to measure the liquid velocity in the column at high spatial and high temporal resolutions. The distribution of void fraction was measured using an electrical conductivity probe. The conclusions obtained under the present experimental conditions are as follows: (1) the small LDV probe is of great use in measuring the distributions of mean and fluctuation velocities of the liquid phase at high spatial and high temporal resolutions, (2) the velocity fluctuation in the heterogeneous regime in the bubble column is mainly due to large-scale vortical structures, and (3) the multi-fluid model can give good predictions of a heterogeneous bubbly flow without using the turbulence models, provided that large-scale vortical structures in the flow prevail over the bubble-induced and shear-induced turbulences. (C) 2014 Elsevier Ltd. All rights reserved.

    PERGAMON-ELSEVIER SCIENCE LTD, Dec. 2014, INTERNATIONAL JOURNAL OF MULTIPHASE FLOW, 67, 111 - 121, English

    [Refereed]

    Research paper (scientific journal)

  • Condensation Experiments for Counter-current Flow Limitation at Lower End of an Inverted U-Tube

    KINOSHITA TAKAYOSHI, MURASE MICHIO, FUJII YUKI, NOZUE TAKAHIRO, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    Dec. 2014, 10th International Topical Meeting on Nuclear Thermal Hydraulics, Operation and Safety (NUTHOS-10), USB, English

    [Refereed]

    Research paper (international conference proceedings)

  • Numerical simulation of incipient cavitation flow in a nozzle of fuel injector

    Akira Sou, Baris Bicer, Akio Tomiyama

    Cavitation clouds shedding in a nozzle of fuel injector for Diesel Engines play a dominant role in the fuel spray atomization process and the subsequent spray combustion. Since a high speed cavitation flow in a tiny nozzle with a complicated geometry is not easy to be visualized and measured, large efforts have been paid to carry out numerical simulations of the transient cavitating flow in the nozzle. Most of the previous simulations are based on the Homogeneous Equilibrium Model (HEM), a simplified bubble dynamics model or a barotropic equation, and the Reynolds-Averaged Navier-Stokes (RANS) turbulence model, which do not predict the cavitation cloud shedding. Cavitation in the nozzle takes various forms, such as a transparent cavitation sheet and clouds of cavitation bubbles, which makes its prediction difficult. As a first step to develop a cavitation model which can accurately treat both the sheet and cloud cavitations, in this study we propose a new combination of Large Eddy Simulation (LES), Eulerian-Lagrangian Bubble Tracking Method (BTM), and the Rayleigh-Plesset (RP) equation to simulate an incipient cavitation, in which only cavitation bubble clouds appear. A precursor simulation of a fully developed turbulent flow in a channel, in which periodic boundary condition is adopted for the inlet and exit, is carried out to generate inlet boundary condition for a nozzle simulation. To verify the validity of the model, transient cavitation motion and turbulent velocity in a rectangular nozzle are acquired by using a high speed camera and Laser Doppler Velocimetry (LDV). As a result, a recirculation flow and a cavitation cloud shedding are accurately predicted by LES using a fine grid, and the RP equation for all nuclei tracked in a Lagrangian manner. (C) 2014 Elsevier Ltd. All rights reserved.

    PERGAMON-ELSEVIER SCIENCE LTD, Nov. 2014, COMPUTERS & FLUIDS, 103, 42 - 48, English

    [Refereed]

    Research paper (scientific journal)

  • Liquid Velocity Distribution in Turbulent Bubbly Flow in a 2x2 Rod Bundle

    HOSOKAWA SHIGEO, OGAWA YUUMA, TOMIYAMA AKIO

    Nov. 2014, 9th Korea-Japan Symposium on Nuclear Thermal Hydraulics and Safety (NTHAS 9), USB, English

    [Refereed]

    Research paper (international conference proceedings)

  • CCFL of Steam-Condensate Two-Phase Flow in a U-Tube

    NOZUE TAKAHIRO, FUJII YUKI, MURASE MICHIO, HAYASHI KOSUKE, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    Nov. 2014, ANS Conference 2014 Winter Meeting and Nuclear Technology Expo, CD-ROM, 2 pages, English

    [Refereed]

    Research paper (international conference proceedings)

  • Numerical simulation of slug generation at a v-shaped elbow between inclined pipes

    IRIKURA MOTOKI, MAEKAWA MUNENORI, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    Sep. 2014, 13th International Conference on Multiphase Flow in Industrial Plant (MFIP2014), English

    [Refereed]

    Research paper (international conference proceedings)

  • Mass Transfer from Single Taylor Bubbles in a Mini Channel

    KASTENS Sven, HOSODA Shogo, SCHLUTER Michael, TOMIYAMA AKIO

    Sep. 2014, Proc. 2nd International Symposium on Multiscale Multiphase Process Engineering, pp. 30 - 35, English

    [Refereed]

    Research paper (international conference proceedings)

  • Effects of Surfactant on Mass Transfer from Single Carbon Dioxide Bubbles in Vertical Pipes

    AOKI JIRO, HAYASHI KOSUKE, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    Sep. 2014, Proc. 2nd International Symposium on Multiscale Multiphase Process Engineering, pp. 94 - 99, English

    [Refereed]

    Research paper (international conference proceedings)

  • Effects of Height-To-Diameter Ratio on Gas Holdup in a Slurry Bubble Column

    SASAKI SHOHEI, OJIMA SHIMPEI, HAYASHI KOSUKE, TOMIYAMA AKIO

    Sep. 2014, Proc. 2nd International Symposium on Multiscale Multiphase Process Engineering, pp. 230 - 235, English

    [Refereed]

    Research paper (international conference proceedings)

  • An Interface Capturing Scheme for Free-Surface Flows in a Flow Channel Consisting of Solid Obstacles

    SHIMADA NAOKI, DHAR ABHINAV, HAYASHI KOSUKE, TOMIYAMA AKIO

    Sep. 2014, Proc. 2nd International Symposium on Multiscale Multiphase Process Engineering, pp. 106 - 115, English

    [Refereed]

    Research paper (international conference proceedings)

  • Numerical Simulaton of Slugging of Stagnant Liquid at a V-Shaped Elbow in a Pipeline

    IRIKURA MOTOKI, MAEKAWA MUNENORI, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    Elsevier, Aug. 2014, Applied Mathematical Modelling, 38 (17-18), 4238 - 4248, English

    [Refereed]

    Research paper (scientific journal)

  • Mass Transfer from Single Carbon Dioxide Bubbles in Contaminated Water

    AOKI JIRO, HAYASHI KOSUKE, HOSODA SHOGO, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    Aug. 2014, ASME 2014 4th joint US-European Fluids Engineering Division Summer Meeting and 11th International Conference on Nanochannels, Microchannels, and Minichannels, FEDSM2014, FEDSM2014 - 21103, 8 pages, English

    [Refereed]

    Research paper (international conference proceedings)

  • Bubble Growth in Microgravity under the Action of Electric Forces: Experiments and Numerical Simulation

    DI MARCO PAOLO, KURIMOTO RYO, SACCONE GIACOMO, HAYASHI KOSUKE, TOMIYAMA AKIO

    Aug. 2014, Proc. 15th International Heat Transfer Conference, IHTC-15, IHTC15 - 08960, 11 pages, English

    [Refereed]

    Research paper (international conference proceedings)

  • 下降-上昇傾斜管のV字部におけるスラグ発生の数値シミュレーション

    IRIKURA MOTOKI, MAEKAWA MUNENORI, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    化学工学会, Jul. 2014, 化学工学論文集, 40 (4), 275 - 281, Japanese

    [Refereed]

    Research paper (scientific journal)

  • Numerical Simulations of Clean and Contaminated Bubbles in Linear Shear Flows

    HAYASHI KOSUKE, AOYAMA SHOHEI, TOMIYAMA AKIO

    Jul. 2014, International Conference on Numerical Methods for Multiphase Flow 2014, ICNMMF2014, 2 pages, English

    [Refereed]

    Research paper (international conference proceedings)

  • Evaluation of Interfacial Shear Stress of Single Drop using Spatiotemporal Filter Velocimetry

    HOSOKAWA SHIGEO, KITAHATA KYOSUKE, HAYASHI Kosuke, TOMIYAMA AKIO

    Jul. 2014, 17th International Symposium on Applications of Laser Techniques to Fluid Mechamics (LISBON 2014), English

    [Refereed]

    Research paper (international conference proceedings)

  • Effects of Numerical Treatment of Viscous and Surface Tension Forces on Predicted Motion of Interface

    HAYASHI KOSUKE, TOMIYAMA AKIO

    Jun. 2014, Journal of Computational Multiphase Flows, 6 (2), 111 - 126, English

    [Refereed]

    Research paper (scientific journal)

  • Time Evolution of Diameter of Micro-Bubbles Generated by a Pressurized Dissolution Method

    ISHII Kazuya, HOSOKAWA SHIGEO, TOMIYAMA Akio, ITO Yoshihiro, MAEDA Yasunari

    Apr. 2014, AIP Proceedings, 1592, 333 - 340, English

    [Refereed]

    Research paper (international conference proceedings)

  • Measurement of Bubbly Flow Using Spatiotemporal Filter Velocimetry Coupled with Molecular Tagging

    HOSOKAWA SHIGEO, IKEDA Satoru, TOMIYAMA Akio

    Apr. 2014, AIP Proceedings, 1592, 224 - 231, English

    [Refereed]

    Research paper (international conference proceedings)

  • Numerical Simulations of Void Fractions in Air-Water Tests with a 4 x 4 Rod Bundle under Stagnant Water Conditions

    MURASE MICHIO, YANAGI CHIHIRO, UTANOHARA YOICHI, TAKATA TAKASHI, YAMAGUCHI AKIRA, TOMIYAMA AKIO

    Mar. 2014, Japanese Journal of Multiphase Flow, 28 (1), 55 - 61, Japanese

    [Refereed]

    Research paper (scientific journal)

  • Air-Water Tests on Counter-current Flow Limitation at Lower End of Vertical Pipes Simulating Lower Part of Steam Generator U-tube

    KUSUNOKI TAKAYOSHI, DOI TAIGA, FUJII YUKI, TSUJI TAKASHI, MURASE MICHIO, TOMIYAMA AKIO

    日本混相流学会, Mar. 2014, Japanese Journal of Multiphase Flow, 28 (1), 62 - 70, Japanese

    [Refereed]

    Research paper (scientific journal)

  • Void distribution and bubble motion in bubbly flows in a 4×4 rod bundle. Part II: numerical simulation

    HAYASHI KOSUKE, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    Feb. 2014, Journal of Nuclear Science and Technology, 51 (5), 580 - 589, English

    [Refereed]

    Research paper (scientific journal)

  • Void distribution and bubble motion in bubbly flows in a 4 x 4 rod bundle. Part I: Experiments

    Shigeo Hosokawa, Kosuke Hayashi, Akio Tomiyama

    Lack of local void fraction data in a rod bundle makes it difficult to validate a numerical method for predicting gas-liquid two-phase flow in the bundle. Distributions of local void fraction and bubble velocity in each subchannel in a 4x4 rod bundle were, therefore, measured using a double-sensor conductivity probe. Liquid velocity in the subchannel was also measured using laser Doppler velocimetry (LDV) to obtain relative velocity between bubbles and the liquid phase. The size and pitch of rods were 10 and 12.5mm, respectively. Air and water at atmospheric pressure and room temperature were used for the gas and liquid phases, respectively. The volume fluxes of gas and liquid phases ranged from 0.06 to 0.15m/s and from 0.9 to 1.5m/s, respectively. Experimental results showed that the distributions of void fraction in inner and side subchannels depend not only on lift force acting on bubbles but also on geometrical constraints on bubble dynamics, i.e. the effects of rod walls on bubble shape and rise velocity. The relative velocity between bubbles and the liquid phase in the subchannel forms a non-uniform distribution over the cross-section, and the relative velocity becomes smaller as bubbles approach the wall due to the wall effects.

    TAYLOR & FRANCIS LTD, Feb. 2014, JOURNAL OF NUCLEAR SCIENCE AND TECHNOLOGY, 51 (2), 220 - 230, English

    [Refereed]

    Research paper (scientific journal)

  • Mass transfer from a bubble in a vertical pipe

    Shogo Hosoda, Satoru Abe, Shigeo Hosokawa, Akio Tomiyama

    Mass transfer from single carbon dioxide bubbles in vertical pipes is measured using a stereoscopic image processing method to develop a mass transfer correlation applicable to a wide range of bubble diameters in standard pipe sizes. The diameters of pipes used are 12.5, 18.2, and 25.0 mm and the bubble diameter ranges from 5 to 26 mm. The ratio, lambda, of the bubble diameter to the pipe diameter is varied from 0.2 to 1.8, which covers various bubble shapes such as spheroidal, wobbling, cap, and Taylor bubbles. Measured Sherwood numbers, Sh, strongly depend on bubble shape, i.e., Sh of Taylor bubbles differs from that of spheroidal and wobbling bubbles. The Sherwood numbers are correlated in terms of the Peclet number Pe and lambda. The applicability of the proposed correlation to long-term bubble dissolution process is examined through comparisons between measured and predicted dissolution processes. The predictions are carried out by solving mass conservation equations not only for carbon dioxide but also for nitrogen and oxygen. Good agreements are obtained in the dissolution processes for various bubble sizes and the three pipe diameters. (C) 2013 Elsevier Ltd. All rights reserved.

    PERGAMON-ELSEVIER SCIENCE LTD, Feb. 2014, INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 69, 215 - 222, English

    [Refereed]

    Research paper (scientific journal)

  • Implicit-correction-based immersed boundary–lattice Boltzmann method with two relaxation times

    SETA Takeshi, ROJAS, Roberto, HAYASHI KOSUKE, TOMIYAMA AKIO

    Feb. 2014, Physical Review E, 89, 023307, English

    [Refereed]

    Research paper (scientific journal)

  • Effects of shape oscillation on mass transfer from a Taylor bubble

    Kosuke Hayashi, Shogo Hosoda, Gretar Tryggvason, Akio Tomiyama

    Interface tracking simulations of mass transfer from Taylor bubbles were carried out to investigate effects of shape oscillation on the mass transfer. Mass transfer from carbon dioxide Taylor bubbles in a glycerol-water solution was also measured to obtain experimental data for the validation of the numerical method. A high spatial resolution was used to resolve thin concentration boundary layers on the bubble interface, which enabled us to capture the agitation of boundary layer due to interfacial waves. The predicted mass transfer coefficients were in good agreements with the experimental data, provided that the spatial resolution was high enough to capture thin concentration boundary layers of high Schmidt number Taylor bubbles. The simulations have made it clear that the effect of agitation of concentration boundary layer due to interfacial waves on the total mass transfer rate is small and a fluctuation of the Sherwood number is caused by a fluctuation of the bubble surface area. This result implies that interface tracking methods using boundary layer approximations can give accurate predictions for mass transfer from bubbles even when the flow field is not fully resolved when the wave effect on the net mass transfer is negligible. (C) 2013 Elsevier Ltd. All rights reserved.

    PERGAMON-ELSEVIER SCIENCE LTD, Jan. 2014, INTERNATIONAL JOURNAL OF MULTIPHASE FLOW, 58, 236 - 245, English

    [Refereed]

    Research paper (scientific journal)

  • Effects of hydrophilic particles on bubbly flow in slurry bubble column

    Shimpei Ojima, Kosuke Hayashi, Akio Tomiyama

    To investigate the effects of hydrophilic particles on slurry bubble flows in a bubble column, distributions of the local gas holdup and the bubble frequency are measured using an electric conductivity probe. Particles are made of silica and their diameter is 100 mu m. The particle volumetric concentration C-S is varied from 0 to 0.40. The measured data imply that the presence of particles promotes bubble coalescence. The film drainage time for two coalescing bubbles in a quasi two-dimensional bubble flow in a small vessel is also measured to quantitatively evaluate the particle effect on coalescence. A particle-effect multiplier is introduced into a coalescence efficiency model by taking into account the data of film drainage time and is implemented into a multi-fluid model. The main conclusions obtained are as follows: (1) the local gas holdup and bubble frequency in slurry bubble flows decrease with increasing the particle concentration, (2) the hydrophilic particles enhance bubble coalescence and the enhancement saturates at C-S similar or equal to 0.45, (3) the particle effect on coalescence is well accounted for by introducing the particle-effect multiplier to the film drainage time, and (4) the multi-fluid model can give good predictions for the distribution of the local gas holdup in the slurry bubble column. (C) 2013 Elsevier Ltd. All rights reserved.

    PERGAMON-ELSEVIER SCIENCE LTD, Jan. 2014, INTERNATIONAL JOURNAL OF MULTIPHASE FLOW, 58, 154 - 167, English

    [Refereed]

    Research paper (scientific journal)

  • An Interface-Capturing Method for Free-Surface Flows in a Flow Channel Consisting of Solid Obstacles

    Abhinav Dhar, Naoki Shimada, Kosuke Hayashi, Akio Tomiyama

    An interface-capturing method for simulating two-phase flows in complex geometries is proposed. A structured orthogonal grid is used, and the presence of stationary solid boundaries is taken into account by using the volume fraction of the solid phase in a computational cell. The transport equation of the fluid volume fraction in the presence of solid boundaries is derived. The fluid phases are transported by using the THAINC (tangent of hyperbola with adaptive slope for interface capturing) method. An immersed boundary method is implemented to accurately calculate the volume flux of each fluid phase through a computational cell face, a part of which is blocked by the solid phase. Transportation of a fluid square in the presence of solid boundaries is carried out, to con firm that the errors in shape and volume conservation are low. The applicability of the proposed method to two-phase flows in complex geometries is examined through simulations of a flow about cylindrical tubes in a staggered arrangement and a dam break problem with an obstacle. In the former the pressure drop in the single-phase condition agrees well with the available correlation and the gas-liquid behavior in the tube geometry is qualitatively well predicted. The predicted liquid flow in the dam break problem also agrees well with available experimental data.

    SOC CHEMICAL ENG JAPAN, 2014, JOURNAL OF CHEMICAL ENGINEERING OF JAPAN, 47 (3), 230 - 240, English

    [Refereed]

    Research paper (scientific journal)

  • Time Evolution of Diameter of Micro-Bubbles Generated by a Pressurized Dissolution Method

    ISHII Kazuya, HOSOKAWA SHIGEO, TOMIYAMA Akio, ITO Yoshihiro, MAEDA Yasunari

    Dec. 2013, Internatinal Symposium on Measurement Techniques for Multiphase Flows, ISMTMF2013, English

    [Refereed]

    Research paper (international conference proceedings)

  • Photobleaching Molecular Tagging Velocimetry and Its Application to Bubbly Flows

    HOSOKAWA SHIGEO, TOMIYAMA Akio

    Dec. 2013, Internatinal Symposium on Measurement Techniques for Multiphase Flows, ISMTMF2013, English

    [Refereed][Invited]

    Research paper (international conference proceedings)

  • Measurement of Bubbly Flow Using Spatiotemporal Filter Velocimetry Coupled with Molecular Tagging

    HOSOKAWA SHIGEO, IKEDA Satoru, TOMIYAMA Akio

    Dec. 2013, Internatinal Symposium on Measurement Techniques for Multiphase Flows, ISMTMF2013, English

    [Refereed]

    Research paper (international conference proceedings)

  • Effects of inlet condition on flow structure of bubbly flow in a rectangular column

    Mohd Hatta, bin Mohd, Akbar, HAYASHI KOSUKE, LUCAS Dirk, TOMIYAMA AKIO

    Dec. 2013, Chemical Engineering Science, 104, 166 - 176, English

    [Refereed]

    Research paper (scientific journal)

  • Development of a submersible small fiber LDV probe and its application to flows in a 4x4 rod bundle

    HOSOKAWA SHIGEO, MIKIHARA IKUMI, TOMIYAMA AKIO

    Optical measurement is an effective and accurate method to understand flow structures of multiphase flows. However, we frequently encounter difficulty in optical access due to the presence of interface and the complex geometry of a flow field. In the present study, we have developed small LDV optics to avoid the difficulty in optical access by installing the LDV probe into a ch

    Elsevier, Oct. 2013, Nuclear Engineering and Design, 263, 342 - 349, English

    [Refereed]

    Research paper (scientific journal)

  • Tomographic Spatial Filter Velocimetry for Three-Dimensional Measurement of Fluid Velocity

    HOSOKAWA SHIGEO, TOMIYAMA AKIO, MATSUMOTO TAKAKI

    Springer, Sep. 2013, Experiments in Fluids, 54 (9), 1597, English

    [Refereed]

    Research paper (scientific journal)

  • Numerical Simulation of Void Fraction in a Rod Bundle under Stagnant Liquid Condition

    MURASE MICHIO, YANAGI CHIHIRO, TAKATA TAKASHI, YAMAGUCHI AKIRA, TOMIYAMA AKIO

    Sep. 2013, ANS Winter Meeting, Washington D.C., English

    [Refereed]

    Research paper (international conference proceedings)

  • Immersed Boundary-Finite Difference Lattice Boltzmann Method Using Two Relaxation Times

    ROJAS, Roberto, SETA, Takeshi, HAYASHI KOSUKE, TOMIYAMA AKIO

    JSME, Sep. 2013, Journal of Fluid Science and Technology, 8 (3), 262 - 276, English

    [Refereed]

    Research paper (scientific journal)

  • Gas-Liquid Two-Phase Flows Inside and Outside an Air Diffuser Pipe

    HAYASHI KOSUKE, TOMIYAMA AKIO

    Sep. 2013, 9th UK - Japan Seminar on Multi-Phase Flow, Japanese

    [Refereed]

    Research paper (international conference proceedings)

  • Distribution of Void Fraction and Liquid Velocity in Air-Water Bubble Column

    OJIMA Shinpei, HOSOKAWA SHIGEO, HAYASHI Kosuke, TOMIYAMA Akio

    Sep. 2013, 9th UK-Japan Seminar on Multi-Phase Flow, English

    [Refereed]

    Research paper (international conference proceedings)

  • CCFL at Lower End of a Vertical Pipe

    FUJII Yuki, DOI Taiga, MURASE Michio, HOSOKAWA SHIGEO, TOMIYAMA Akio

    American Nuclear Society, Sep. 2013, ANS Winter Meeting, English

    [Refereed]

    Research paper (international conference proceedings)

  • Bubble Shape under the Action of Electric Forces

    DI MARCO PAOLO, KURIMOTO RYO, SACCONE GIACOMO, HAYASHI KOSUKE, TOMIYAMA AKIO

    Sep. 2013, Experimental Thermal and Fluid Science, 49, 160 - 168, English

    [Refereed]

    Research paper (scientific journal)

  • A validation of an Embedded Analytical Description Approach for the Computations of High Schmidt Number Mass Transfer from Bubbles in Liquids

    ABOULHASANZADEH Bahman, HOSODA Shogo, TOMIYAMA Akio, TRYGGVASON Gretar

    Sep. 2013, Chemical Engieering Science, 101, 165 - 174, English

    [Refereed]

    Research paper (scientific journal)

  • Numerical Simulation of Countercurrent Flow in a PWR Hot Leg by Using Two-Fluid Model

    MURASE Michio, UTANOHARA Yoichi, YANAGI Chihiro, TAKATA Takashi, YAMAGUCHI Akira, TOMIYAMA Akio

    Jul. 2013, Journal of Energy and Power Engineering, 7, 1215 - 1222, English

    [Refereed]

    Research paper (scientific journal)

  • Measurement of Bubble Velocity using Spatial Filter Velocimetry

    HOSOKAWA SHIGEO, MATSUMOTO Takaaki, TOMIYAMA Akio

    Springer, Jun. 2013, Experiments in Fluids, 54 (6), 1538, English

    [Refereed]

    Research paper (scientific journal)

  • Effects of Inlet Condition on Flow Structure of Bubbly Flow in Rectangular Column

    Mohd Hatta, bin Mohd, Akbar, HAYASHI KOSUKE, TOMIYAMA AKIO, LUCAS, Dirk

    Jun. 2013, 8th World Conference on Experimental Heat Transfer, Fluid Mechanics, and Thermodynamics (ExHFT8), USB memory, 8 pages, English

    [Refereed]

    Research paper (international conference proceedings)

  • Void Distribution and Bubble Motion in Bubbly Flows in a 4 X 4 Rod Bundle

    HOSOKAWA SHIGEO, HAYASHI KOSUKE, TOMIYAMA AKIO

    May 2013, 15th International Topical Meeting on Nuclear Reactor Thermal - Hydraulics, NURETH-15, NURETH15 - 244, USB memory, 12 pages, English

    [Refereed]

    Research paper (international conference proceedings)

  • Numerical Simulations of Countercurrent Gas-Liquid Flows in a Vertical Pipe

    MURASE MICHIO, UTANOHARA YOICHI, YANAGI CHIHIRO, TAKATA TAKASHI, YAMAGUCHI AKIRA, TOMIYAMA AKIO

    May 2013, 8th International Conference on Multiphase Flow, ICMF2013, ICMF2013 - 047 (7 pages), English

    [Refereed]

    Research paper (international conference proceedings)

  • NUMERICAL SIMULATION OF BUBBLY FLOWS IN A 4 X 4 ROD BUNDLE USING A MULTI-FLUID MODEL

    HAYASHI KOSUKE, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    May 2013, 15th International Topical Meeting on Nuclear Reactor Thermal - Hydraulics, NURETH-15, NURETH15 - 245, USB memory, 12 pages, English

    [Refereed]

    Research paper (international conference proceedings)

  • Mass Transfer from Single Carbon Dioxide Bubbles in Glycerol-Water Solution

    AOKI JIRO, HOSODA SHOGO, HAYASHI KOSUKE, TOMIYAMA AKIO, HOSOKAWA SHIGEO

    May 2013, 8th International Conference on Multiphase Flow, ICMF2013, ICMF2013 - 229, USB memory, 9 pages, English

    [Refereed]

    Research paper (international conference proceedings)

  • Effects of Shape Oscillation on Mass Transfer from a Taylor Bubble

    HOSODA SHOGO, HAYASHI KOSUKE, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    May 2013, 8th International Conference on Multiphase Flow, ICMF2013, ICMF2013 - 286, USB memory, 8 pages, English

    [Refereed]

    Research paper (international conference proceedings)

  • Effects of Hydrophilic Particles on Bubble Coalescence in Slurry Bubble Column

    OJIMA SHIMPEI, HAYASHI KOSUKE, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    May 2013, 8th International Conference on Multiphase Flow, ICMF2013, ICMF2013 - 157, USB memory, 13 pages, English

    [Refereed]

    Research paper (international conference proceedings)

  • Bubble Induced Pseudo Turbulence in Laminar Pipe Flows

    HOSOKAWA Shigeo, TOMIYAMA Akio

    Apr. 2013, International Journal of Heat and Fluid Flow, 40, 97 - 105, English

    [Refereed]

    Research paper (scientific journal)

  • 気液界面の簡易的数値計算法

    DHAR Abhinav, SHIMADA Naoki, TOMIYAMA Akio

    Mar. 2013, 化学工学論文集, 39 (2), 86 - 93, Japanese

    [Refereed]

    Research paper (scientific journal)

  • Terminal velocities of clean and fully-contaminated drops in vertical pipes

    KURIMOTO, Ryo, HAYASHI, Kosuke, TOMIYAMA, Akio

    Mar. 2013, International Journal of Multiphase Flow, Vol. 49, pp. 8-23

    [Refereed]

    Research paper (scientific journal)

  • Numerical Simulation of Flows about a Stationary and a Free-Falling Cylinder Using Immersed Boundary-Finite Difference Lattice Boltzmann Method

    ROJAS, Roberto, HAYASHI KOSUKE, SETA, Takeshi, TOMIYAMA AKIO

    Multi-Science Publishing, Mar. 2013, Journal of Computational Multiphase Flows, 5 (1), 27 - 41, English

    [Refereed]

    Research paper (scientific journal)

  • NUMERICAL ANALYSIS OF THERMAL-HYDRAULICS BY IMMERSED BOUNDARY-LATTICE BOLTZMANN METHOD USING TWO-RELAXATION-TIME

    SETA, Takeshi, UCHIDA, Yosuke, ROJAS, Roberto, HAYASHI, Kosuke, TOMIYAMA, Akio

    Dec. 2012, 計算数理工学論文集, Vol. 12, pp. 37-42, Japanese

    [Refereed]

    Research paper (scientific journal)

  • Onset of Slugging of Stagnant Liquid at a V-Shaped Elbow in a Pipeline: Experiment and Numerical Simulation

    IRIKURA Motoki, MAEKAWA Munenori, HOSOKAWA Shigeo, TOMIYAMA Akio

    Dec. 2012, Ninth International Conference on Computational Fluid Dynamics in the Minerals and Process Industries, English

    [Refereed]

    Research paper (international conference proceedings)

  • Numerical analysis of thermal-hydraulics by immersed boundary-lattice Boltzmann method using two-relaxation-time

    SETA, Takeshi, UCHIDA, Yosuke, ROJAS, Roberto, HAYASHI, Kosuke, TOMIYAMA, Akio

    Dec. 2012, ICOME2012/JASCOME2012

    Research paper (international conference proceedings)

  • IMMERSED BOUNDARY-FINITE DIFFERENCE LATTICE BOLTZMANN METHOD USING TWO RELAXATION TIMES

    ROJAS, Roberto, SETA, Takeshi, HAYASHI, Kosuke, TOMIYAMA, Akio

    Dec. 2012, 9th International Conference on CFD in the Minerals and Process Industries,, CD-ROM, 6 pages, English

    [Refereed]

    Research paper (international conference proceedings)

  • Experimental Investigation of Stratified Two-Phase Flows in the Hot Leg of a PWR for CFD Validation

    VALLEE Christophe, LUCAS Dirk, TOMIYAMA Akio, MURASE Michio

    Dec. 2012, International Journal of Electricity and Heat Generation, 12, 40 - 46, English

    [Refereed]

    Research paper (scientific journal)

  • EFFECTS OF NUMERICAL TREATMENT OF VISCOUS AND SURFACE TENSION FORCES ON PREDICTED INTERFACE MOTION

    HAYASHI, Kosuke, TOMIYAMA, Akio

    Dec. 2012, 9th International Conference on CFD in the Minerals and Process Industries,, CD-ROM, 6 pages

    [Refereed]

    Research paper (international conference proceedings)

  • Counter-Current Flow Limitation at Lower Ends of Vertical Pipes

    DOI Taiga, FUJII Yuki, KAWASAKI Ikuo, MURASE Michio, HOSOKAWA Shigeo, TOMIYAMA Akio

    Dec. 2012, 8th Japan-Korea Symposium on Nuclear Thermal Hydraulics ans Safty (NTHAS-8), USB Memory, English

    [Refereed]

    Research paper (international conference proceedings)

  • BUBBLE TRACKING SIMULATION OF BUBBLE-INDUCED PSEUDOTURBULENCE

    Mohd Hatta, bin Mohd, Akbar, HAYASHI KOSUKE, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    Begell house, Dec. 2012, Multiphase Science and Technology, 24 (3), 197 - 222, DOI: 10.1615/MultScienTec, English

    [Refereed]

    Research paper (scientific journal)

  • Interface Tracking Simulation of Bubbles in Clean and Contaminated Systems

    HAYASHI, Kosuke, TOMIYAMA, Akio

    Nov. 2012, Korea-Japan CFD Workshop 2012,, 8 pages

    Research paper (international conference proceedings)

  • Development of a Submergible Small Fiber LDV Probe and Its Application to Flows in a 4 x 4 Rod Bundle

    HOSOKAWA Shigeo, MIKIHARA Ikumi, TOMIYAMA Akio, ZHANG Zheng

    Oct. 2012, 7th International Symposium on Multiphase Flow, Heat and Mass Transfer and Energy Conversion, CD-ROM, English

    [Refereed]

    Research paper (international conference proceedings)

  • Liquid Mixing in a Bubble Column

    SHIMADA Naoki, SAIKI Rina, DHAR Abhinav, Mizuta Kei, TOMIYAMA Akio

    Sep. 2012, Journal of Chemical Engineering of Japan, 45 (9), 632 - 638, English

    [Refereed]

    Research paper (scientific journal)

  • BUBBLE TRACKING SIMULATION OF BUBBLE-INDUCED PSEUDO TURBULENCE

    Mohd Hatta, bin Mohd, Akbar, Hayashi, Kosuke, Hosokawa, Shigeo, TOMIYAMA, Akio

    Sep. 2012, 6th Japanese-European Two-Phase Flow Group Meeting, USB memory, 10 pages

    [Refereed]

    Research paper (international conference proceedings)

  • Application of Spatial Filter velocimetry to Bubbly Flows

    HOSOKAWA Shigeo, MATSUMOTO Takaaki, TOMIYAMA Akio

    Sep. 2012, 6th Japanese-European Two-phase Flow Group Meeting, USB Memory, English

    [Refereed]

    Research paper (international conference proceedings)

  • Numerical Simulations for Steam-Water CCFL Tests using the 1/3 Scale Rectangular Channel Simulating a PWR Hot Leg

    UTANOHARA Yoichi, KINOSHITA Ikuo, KINOSHITA Ikuo, LUCAS Dirk, VALLEE Christophe, TOMIYAMA Akio

    Aug. 2012, Nuclear Engineering and Design, Vol.249, pp.14-23, English

    [Refereed]

    Research paper (scientific journal)

  • Measurements of turbulent flows in a 2 × 2 rod bundle

    HOSOKAWA Shigeo, YAMAMOTO Taishi, OKAJIMA Jun, TOMIYAMA Akio

    Aug. 2012, Nuclear Engineering and Design, Vol. 249, pp. 2-13, English

    [Refereed]

    Research paper (scientific journal)

  • Effects of swirler shape on swirling annular flow in a gas–liquid separator

    MATSUBAYASHI, Toshiki, KATONO, Kenichi, HAYASHI, Kosuke, TOMIYAMA, Akio

    Aug. 2012, Nuclear Engineering and Design, Vol. 249 pp. 63–70

    [Refereed]

    Research paper (scientific journal)

  • Onset of Slugging of Stagnant Liquid at a V-Shaped Elbow in a Pipeline

    IRIKURA Motoki, HOSOKAWA Shigeo, TOMIYAMA Akio

    Jul. 2012, Transactions of the Japan Society of Mechanical Engineers, B編, Vol. 78, No. 791, pp. 1292, Japanese

    [Refereed]

    Research paper (scientific journal)

  • Two-phase swirling flow in a barrel of a steam separator

    MIKA Takeshi, MATSUBAYASHI Toshiki, HOSOKAWA Shigeo, TOMIYAMA Akio

    Jul. 2012, International Journal of Nuclear Safety and Simulation, Vol. 3, No. 2, pp. 124 - 131, English

    [Refereed]

    Research paper (scientific journal)

  • Tomographic Spatial Filter Velocimetry for Three-Dimensional Measurement of Fluid Velocity

    HOSOKAWA Shigeo, MATSUMOTO Takaaki, TOMIYAMA Akio

    Jul. 2012, The 16th Symposium on Applications of Laser Techniques to Fluid Mechanics (Lisbon 2012), online CD, English

    [Refereed]

    Research paper (international conference proceedings)

  • Measurements of Bubble Velocity using Spatial Filter Velocimetry

    MATSUMOTO Takaaki, HOSOKAWA Shigeo, TOMIYAMA Akio

    Jul. 2012, The 16th Symposium on Applications of Laser Techniques to Fluid Mechanics (Lisbon 2012), online CD, English

    [Refereed]

    Research paper (international conference proceedings)

  • Spatial Filter Velocimetry based on Time-Seriese Particle Images

    HOSOKAWA Shigeo, TOMIYAMA Akio

    Jun. 2012, Experiments in Fluids, Vol. 52, No. 6, pp. 1361 - 137, English

    [Refereed]

    Research paper (scientific journal)

  • Numerical Simulation of Mass Transfer From a Taylor Bubble with Shape Oscillation

    HOSODA, Shogo, HAYASHI Kosuke, HOSOKAWA, Shigeo, TOMIYAMA, Akio

    Jun. 2012, International Conference on Numerical Methods in Multiphase Flows, No. 7-1

    Research paper (international conference proceedings)

  • Immersed Boundary-Lattice Boltzmann Method Using Two Relaxation Times

    HAYASHI, Kosuke, ROJAS, Roberto, SETA, Takeshi, TOMIYAMA, Akio

    Jun. 2012, The Journal of Computational Multiphase Flows, Vol. 4, No. 2, pp. 193-209

    [Refereed]

    Research paper (scientific journal)

  • Evaluation of Turbulence Kinetic Energy Budget in Turbulent Flows by using Photobleaching Molecular Tagging Velocimetry

    HOSOKAWA Shigeo, MIZUMOTO Hiroki, TOMIYAMA Akio

    Jun. 2012, Journal of Fluid Scienece and Technology, Vol. 7, No. 1, pp. 168 - 180, English

    [Refereed]

    Research paper (scientific journal)

  • EFFECTS OF SURFACTANT ON THE MOTION OF BUBBLES IN LINEAR SHEAR FLOWS

    HAYASHI, Kosuke, KURIMOTO, Ryo, HOSOKAWA, Shigeo, TOMIYAMA, Akio

    Jun. 2012, 2012 Japan-U.S. seminar on Two-Phase flow Dynamics, USB memory, 10 pages

    Research paper (international conference proceedings)

  • Development of A Submergible Small Fiber LDV for Measuring Complex Multiphase Flows

    HOSOKAWA Shigeo, TOMIYAMA Akio

    Jun. 2012, Japan-US Seminer on Two-Phase Flow Dynamics 2012, USB, English

    [Refereed]

    Research paper (international conference proceedings)

  • Study on Flows inside and outside an Air Diffuser for Membrane Bioreactor

    KIRA, Fumihiro, FURUNO, Shinsuke, HAYASHI Kosuke, SAMPEI, Tomoyuki, TOMIYAMA, Akio

    Apr. 2012, Journal of Fluid Science and Technology, Vol. 7, No. 1, pp. 78-88

    [Refereed]

    Research paper (scientific journal)

  • Mixing of thermally stratified water layer by a free rising wobbling air bubble

    Zun Iztok, PERPAR Matjaz, GREGORC Jurij, HAYASHI Kosuke, TOMIYAMA Akio

    Apr. 2012, Chemical Engineering Science, Vol. 72, pp. 155–171

    [Refereed]

    Research paper (scientific journal)

  • Countercurrent Flow Limitation at the Junction between the Surge Line and the Pressurizer of a PWR

    DOI, Taiga, FUTATSUGI, Takashi, MURASE, Michio, HAYASHI, Kosuke, HOSOKAWA, Shigeo, TOMIYAMA, Akio

    Apr. 2012, Science and Technology of Nuclear Installations, Vol. 2012, 754724, 10 pages

    [Refereed]

    Research paper (scientific journal)

  • 加圧溶解型微細気泡発生装置における気泡径、気泡密度と濁度の関係

    TAYA Chihiro, MAEDA Yasunari, HOSOKAWA Shigeo, TOMIYAMA Akio, ITO Yoshihiro, SHIBATA Naoki

    Mar. 2012, 混相流, Vol. 25, No. 5, pp. 407 - 414, Japanese

    [Refereed]

    Research paper (scientific journal)

  • Turbulence Kinetic Energy Budget in Bubbly Flows in a Vertical Duct

    HOSOKAWA Shigeo, SUZUKI Takashi, TOMIYAMA Akio

    Mar. 2012, Experiments in Fluids, Vol. 57, No. 3, pp. 719-728, D, English

    [Refereed]

    Research paper (scientific journal)

  • Size Distributions of Micro-bubbles Generated by a Pressurized Dissolution Method

    TAYA Chihiro, MAEDA Yasunari, HOSOKAWA Shigeo, TOMIYAMA Akio, ITO Yoshihiro

    Mar. 2012, AIP Conference Proceedings, Volume 1428, 2012, pp. 199 - 2, English

    [Refereed]

    Research paper (international conference proceedings)

  • Interface Tracking Simulation of Mass Transfer from a Dissolving Bubble

    HAYASHI Kosuke, TOMIYAMA Akio

    Mar. 2012, Journal of Computational Multiphase Flows, 3(4), 247-261

    [Refereed]

    Research paper (scientific journal)

  • Evaluation of Turbulence Kinetic Energy Budget in Turbulent Flows by using a Photobleaching Molecular Tagging Velocimetry

    HOSOKAWA Shigeo, MIZUMOTO Hiroki, SUZUKI Takashi, TOMIYAMA Akio

    Mar. 2012, AIP Conference Proceedings, Volume 1428, 2012, pp. 295 - 3, English

    [Refereed]

    Research paper (international conference proceedings)

  • Effects of surfactant on terminal velocity of a Taylor bubble in a vertical pipe

    HAYASHI Kosuke, TOMIYAMA Akio

    Mar. 2012, International Journal of Multiphase Flow, Vol. 39, pp. 78-87

    [Refereed]

    Research paper (scientific journal)

  • Countercurrent Air-Water Flow in a Scale-Down Model of a Pressurizer Surge Line

    FUTATSUGI Takashi, YANAGI Chihiro, MURASE Michio, HOSOKAWA Shigeo, TOMIYAMA Akio

    Mar. 2012, Science and Technology of Nuclear Installations, Vol. 2012, Article ID 174838,, English

    [Refereed]

    Research paper (scientific journal)

  • VOF Calculations of Countercurrent Gas-Liquid Flow in a PWR Hot Leg

    MURASE Michio, TOMIYAMA Akio, KINOSHITA Ikuo, UTANOHARA Yoichi, YANAGI Chihiro, TAKATA Takashi, YAMAGUCHI Akira

    2012, Science and Technology of Nuclear Installations, Vol.2012, doi:10.1155/2012/935, English

    [Refereed]

    Research paper (scientific journal)

  • Numerical Simulation of Size Effects on Countercurrent Flow Limitation in PWR Hot Leg Models

    KINOSHITA Ikuo, MURASE Michio, TOMIYAMA Akio

    2012, Science and Technology of Nuclear Installations, Vol.2012, doi:10.1155/2012/907, English

    [Refereed]

    Research paper (scientific journal)

  • Experimental Characterisation of the Interfacial Structure during Counter-Current Flow Limitation in a Model of the Hot Leg of a PWR

    VALLEE Christophe, NARIAI Toshifumi, FUTATSUGI Takashi, TOMIYAMA Akio, LUCAS Dirk, MURASE Michio

    2012, Science and Technology of Nuclear Installations, Vol.2012, doi:10.1155/2012/298, English

    [Refereed]

    Research paper (scientific journal)

  • Correlation for Countercurrent Flow Limitation in a PWR Hot Leg

    MURASE Michio, TOMIYAMA Akio, LUCAS Dirk, KINOSHITA Ikuo, UTANOHARA Yoichi, YANAGI Chihiro

    2012, Journal of Nuclear Science and Technology, Vol.49, No.4, pp.398-408, English

    [Refereed]

    Research paper (scientific journal)

  • Evaluation of Turbulence Kinetic Energy Budget in Turbulent Flows by using a Photobleaching Molecular Tagging Velocimetry

    MIZUMOTO Hiroki, HOSOKAWA Shigeo, TOMIYAMA Akio

    Dec. 2011, Transactions of the Japan Society of Mechanical Engineers, B編,第77巻, 784号, pp. 2263-2272, Japanese

    [Refereed]

    Research paper (scientific journal)

  • Immersed Boundary-Finite Difference Lattice Boltzmann Method for Liquid-Solid Two-Phase Flows

    ROJAS Roberto, SETA Takeshi, HAYASHI Kosuke, TOMIYAMA Akio

    Dec. 2011, Journal of Fluid Science and Technology, 6(6), 1051-1064

    [Refereed]

    Research paper (scientific journal)

  • On the role of the lateral lift force in poly-dispersed bubbly flows

    LUCAS, Dirk, TOMIYAMA Akio

    Nov. 2011, International Journal of Multiphase Flow, Vol. 37, Iss.9, pp. 1178-1190

    [Refereed]

    Research paper (scientific journal)

  • Multiscale Simulation of Dispersed Flow in Bubble Columns

    TOMIYAMA Akio, OJIMA Shinpei, HAYASHI Kosuke, HOSOKAWA Shigeo

    Oct. 2011, Proc. of 1st International Symposium on Multiscale Multiphase Process Engineering (MMPE), CD-ROM (6 pages)

    Research paper (international conference proceedings)

  • Size Distributions of Micro-bubbles Generated by a Pressurized Dissolution Method

    TAYA Chihiro, MAEDA Yasunari, HOSOKAWA Shigeo, TOMIYAMA Akio, ITO Yoshihiro

    Sep. 2011, Proc. the 7th International Symposium on Measurement Techniques for Multiphase Flows, USB Memory, English

    [Refereed]

    Research paper (international conference proceedings)

  • Mass transfer from a dissolving carbon dioxide bubble in glycerol-water solution

    HOSODA, Shogo, HAYASHI Kosuke, TOMIYAMA Akio

    Sep. 2011, International Conference on Advanced Technology in Experimental Mechanics 2011

    Research paper (international conference proceedings)

  • Experimental Characterisation of the Interfacial Structure During Counter-Current Flow Limitation in a Model of the Hot Leg of a PWR

    VALLEE Christophe, NARIAI Toshifumi, FUTATSUGI Takashi, TOMIYAMA Akio, LUCAS Dirk, MURASE Michio

    Sep. 2011, Proc. of 14th International Topical Meeting on Nuclear Reactor Thermalhydraulics (NURETH-14), No. NURETH14-175, CD-ROM (14 p

    [Refereed]

    Research paper (international conference proceedings)

  • Evaluation of Turbulence Kinetic Energy Budget in Turbulent Flows by using a Photobleaching Molecular Tagging Velocimetry

    MIZUMOTO Hiroki, HOSOKAWA Shigeo, SUZUKI Takashi, TOMIYAMA Akio

    Sep. 2011, Proc. the 7th International Symposium on Measurement Techniques for Multiphase Flows, USB Memory, English

    [Refereed]

    Research paper (international conference proceedings)

  • Counter-current flow limitation at the junction between the surge line and the pressurizer of a PWR

    FUTATSUGI, Takashi, NARIAI, Toshifumi, HAYASHI, Kosuke, TOMIYAMA Akio, YANAGI, Chihiro, MURASE, Michio

    Sep. 2011, Proc. of 14th International Topical Meeting on Nuclear Reactor Thermalhydraulics (NURETH-14), No. NURETH14-057, CD-ROM (12 p

    [Refereed]

    Research paper (international conference proceedings)

  • Assessment of turbulence models for bubbly flow in a bubble column

    SATO, Hiroyasu, Mohd Hatta Bin Mohd, Akbar, HAYASHI, Kosuke, TOMIYAMA Akio

    Sep. 2011, International Conference on Advanced Technology in Experimental Mechanics 2011

    Research paper (international conference proceedings)

  • Spatial Filter Velocimetry based on Time-series Particle Images

    HOSOKAWA Shigeo, SAKAMOTO Hiroki, TOMIYAMA Akio

    Jul. 2011, Proc. the ASME-JSME-KSME Joint Fluids Engineering Conference 2011, USB Memory, English

    [Refereed]

    Research paper (international conference proceedings)

  • Numerical Simulation of Bubbles Contaminated with Soluble Surfactant

    KURIMOTO Ryo, HAYASHI Kosuke, TOMIYAMA Akio

    Jul. 2011, Proc. of ASME-JSME-KSME joint Fluids Engineering Conference 2011, AJKFED2011-04019, 10 pages

    [Refereed]

    Research paper (international conference proceedings)

  • Interface tracking simulation of mass transfer from a dissolving bubble

    HAYASHI Kosuke, TOMIYAMA Akio

    Jul. 2011, Proc. of ASME-JSME-KSME joint Fluids Engineering Conference 2011, AJKFED2011-04007, 9 pages

    [Refereed]

    Research paper (international conference proceedings)

  • Influence of dissolved gas concentration on diameter and number density of micro-bubbles

    MAEDA Yasunari, TAYA Chihiro, HOSOKAWA Shigeo, TOMIYAMA Akio, ITO Yoshihiro, SHIBATA Naoki

    Jul. 2011, Proc. the ASME-JSME-KSME Joint Fluids Engineering Conference 2011, USB Memory, English

    [Refereed]

    Research paper (international conference proceedings)

  • Interface tracking and multi-fluid simulation of bubbly flows in bubble columns

    TOMIYAMA Akio, HAYASHI Kosuke

    Jun. 2011, 8th International Conference on COMPUTATIONAL FLUID DYNAMICS in the Oil & Gas, Metallurgical and Process Industries

    Research paper (international conference proceedings)

  • Hybrid Simulation of Gas-Liquid and Gas-Liquid-Solid Bubbly Flows in Bubble Columns

    TOMIYAMA Akio

    Jun. 2011, Proceedings of the Gas-Liquid and Gas-Liquid-Solid Reactor Engineering Congress (Plenary lecture)

    Research paper (international conference proceedings)

  • Interface tracking simulation of dissolving bubbles and of contaminated bubbles and drops

    TOMIYAMA Akio, HAYASHI Kosuke

    May 2011, 49th European Two-Phase Flow Group Meeting

    Research paper (international conference proceedings)

  • Comparison of Counter-Current Flow Limitation Experiments performed in Two Different Models of the Hot Leg of a Pressurized Water Reactor with Rectangular Cross-Section

    VALLEE Christophe, SEIDEL Tobias, LUCAS Dirk, TOMIYAMA Akio, MURASE Michio

    May 2011, ASME Journal of Engineering for Gas Turbine and Power, Vol.133, Issue 5, pp.052917 1-, English

    [Refereed]

    Research paper (scientific journal)

  • Terminal velocity of a Taylor drop in a vertical pipe

    HAYASHI, Kosuke, KURIMOTO, Ryo, TOMIYAMA, Akio

    Apr. 2011, International Journal of Multiphase Flow,, Vol. 37, 241-251

    [Refereed]

    Research paper (scientific journal)

  • Countercurrent Gas-Liquid Flow in a Rectangular Channel Simulating a PWR Hot Leg (3) (Evaluation of Effects of Fluid Properties using VOF Method)

    KINOSHITA Ikuo, MURASE Michio, NARIAI Toshifumi, TOMIYAMA Akio

    Mar. 2011, 混相流, Vol. 24, No. 4, pp. 445-452, Japanese

    [Refereed]

    Research paper (scientific journal)

  • Mass Transfer from a Bubble in a Vertical Pipe

    HOSODA, Shogo, SAKATA, Ryosuke, HAYASHI, Kosuke, TOMIYAMA, Akio

    Mar. 2011, ASME/JSME 8th Thermal Engineering joint Conference, AJTEC2011-44089, 9 pages

    [Refereed]

    Research paper (international conference proceedings)

  • Numerical Simulation using CFD Software of Countercurrent Gas-Liquid Flow in a PWR Hot Leg under Reflux Condensation

    UTANOHARA Yoichi, KINOSHITA Ikuo, MURASE Michio, Minami Noritoshi, NARIAI Toshifumi, TOMIYAMA Akio

    2011, Nuclear Engineering and Design, Vol.241, pp.1643-1655, English

    [Refereed]

    Research paper (scientific journal)

  • Effects of Liquid Properties on CCFL in a Scaled-Down Model of a PWR Hot Leg

    KINOSHITA Ikuo, NARIAI Toshifumi, TOMIYAMA Akio, LUCAS Dirk, MURASE Michio

    2011, Journal of Power and Energy Systems, Vol.5, No.3, pp.316-329, English

    [Refereed]

    Research paper (scientific journal)

  • Countercurrent Gas-Liquid Flow in a PWR Hot Leg with Air-Water Flow in a 1/15 Scale Model

    MINAMI Noritoshi, MURASE Michio, UTANOHARA Yoichi, KINOSHITA Ikuo, TOMIYAMA Akio

    2011, Journal of Energy and Power Engineering, Vol.5, pp.495-503, English

    [Refereed]

    Research paper (scientific journal)

  • 加圧溶解法により生成した微細気泡の気泡径・数密度

    MAEDA Yasunari, HOSOKAWA Shigeo, TAYA Chihiro, TOMIYAMA Akio, YAMAGUCHI Shigeyuki, ITO Yoshihiro

    Dec. 2010, 混相流, Vol. 24, No. 4, pp. 462-469, Japanese

    [Refereed]

    Research paper (scientific journal)

  • Numerical Verification of a Simplified Model for Vapor Bubble Lift-Off from a Hydrophlic Heated Flat-Wall

    OKAWA Tomio, HAYASHI Kosuke, TOMIYAMA Akio

    Dec. 2010, Nuclear Engineering and Design, Vol. 240, pp. 3942-3948

    [Refereed]

    Research paper (scientific journal)

  • Countercurrent Gas Liquid Flow in a PWR Hot Leg during Reflux Condensation

    MURASE Michio, MINAMI Noritoshi, NAGAE Takashi, TOMIYAMA Akio

    Dec. 2010, International Journal of Nuclear Safety and Simulation, Vol. 1, No. 4, pp. 291-306

    [Refereed]

    Research paper (scientific journal)

  • Velocity Distributions of Turbulent Flows in a 2x2 rod bundle

    HOSOKAWA Shigeo, OKAJIMA Jun, YAMAMOTO Taishi, TOMIYAMA Akio

    Nov. 2010, Proc. 2010 ANS Winter Meeting, CD-ROM, English

    [Refereed]

    Research paper (international conference proceedings)

  • Measurements of turbulent flows in a 2x2 Rod bundle

    OKAJIMA Jun, HOSOKAWA Shigeo, YAMAMOTO Taishi, TOMIYAMA Akio

    Oct. 2010, The 8th International Topical Meeting on Nuclear Reactor Thermal Hydraulics, Operation and Safety (NUTHOS-8), CD-ROM, English

    [Refereed]

    Research paper (international conference proceedings)

  • Effect of Swirler Shape on Swirling Annular Flow in a Gas-Liquid Separator

    KATAOKA Hironobu, SHINKAI Yusuke, MATSUBAYASHI Yusuke, TOMIYAMA Akio

    Oct. 2010, 8th International Topical Meeting on Nuclear Reactor Thermal Hydraulics, Operation and Safety (NUTHOS-8), N8P0108, CD-ROM

    [Refereed]

    Research paper (international conference proceedings)

  • Counter-Current Flow Limitation in a Scale-Down Model of a PWR Hot Leg

    NARIAI Toshifumi, TOMIYAMA Akio, VALLEE Christophe, LUCAS Dirk, MURASE Michio

    Oct. 2010, 8th International Topical Meeting on Nuclear Reactor Thermal Hydraulics, Operation and Safety (NUTHOS-8), N8P0109, CD-ROM

    [Refereed]

    Research paper (international conference proceedings)

  • Cavitation in Nozzles of Plain Orifice Atomizers with Various Length-to-Diameter Ratios

    SOU Akira, HOSOKAWA Shigeo, TOMIYAMA Akio

    Oct. 2010, Atomization and Sprays, Vol. 20, Iss. 6, pp. 513-524, English

    [Refereed]

    Research paper (scientific journal)

  • Interface Tracking simulation of mass transfer from a dissolving bubble in a vertical pipe

    HAYASHI Kosuke, TOMIYAMA Akio

    Sep. 2010, 8th Japan-UK Seminar on Multiphase Flows

    Research paper (international conference proceedings)

  • Void Fraction in a Four by Four Rod Bundle Under a Stagnant Condition

    KAMEI Akihiro, HOSOKAWA Shigeo, TOMIYAMA Akio, KINOSHITA Ikuo, MURASE Michio

    Aug. 2010, Journal of Power and Energy Science, Vol. 4, No. 2, pp. 315-326, English

    [Refereed]

    Research paper (scientific journal)

  • Turbulence Kinetic Energy Budget in Bubbly Flows in a Vertical Duct

    HOSOKAWA Shigeo, SUZUKI Takashi, TOMIYAMA Akio

    Jul. 2010, Proc. 15th International Symposium on Application of Laser Techniqes to Fluid Mechanics, Lisbon, USB Memory, English

    [Refereed]

    Research paper (international conference proceedings)

  • Effects of Bubbles on Turbulence Properties in a Duct Flow

    HOSOKAWA Shigeo, SUZUKI Takashi, TOMIYAMA Akio

    Jul. 2010, Multiphase Science and Technology, Vol. 22, Issue 3, pp. 211-232, English

    [Refereed]

    Research paper (scientific journal)

  • Dimensional Analysis of Terminal Velocities of a Taylor Bubble in Vertical Pipe

    HAYASHI Kosuke, KURIMOTO Ryo, TOMIYAMA Akio

    Jul. 2010, Multiphase Science and Technology, Vol. 22, Issue 3, pp. 197-210

    [Refereed]

    Research paper (scientific journal)

  • Interface Tracking Simulation of Drops Rising Through Liquids in a Vertical Pipe Using Three Coordinate Systems

    HAYASHI Kosuke, KURIMOTO Ryo, TOMIYAMA Akio

    Jun. 2010, Journal of Computatioanl Multiphase Flows, Vol.2, No.1, pp.47-58

    [Refereed]

    Research paper (scientific journal)

  • Effects of Bubbles on Turbulent Flows in Vertical Channels

    HOSOKAWA Shigeo, TOMIYAMA Akio

    Jun. 2010, Proc. International Conference on Multiphase Flow 2010 (ICMF 2010): Keynote Lecture, USB Memory, English

    Research paper (international conference proceedings)

  • Agitation of thermally stratified water layer by free rising wobbling air bubble

    ZUN Iztok, PERPAR Matjaz, GREGORC Jurij, HAYASHI Kosuke, TOMIYAMA Akio

    Jun. 2010, 48th European Two-Phase Flow Group Meeting 2010, ETPFGM'10

    Research paper (international conference proceedings)

  • Effect of entrained air bubbles on micro bubbles generated by a pressurized dissolution method

    HOSOKAWA Shigeo, TANAKA Kenzo, Maeda Yasunari, TOMIYAMA Akio, YAMAGUCHI Shigeyuki, ITO Yoshihiro

    May 2010, Transactions of the Japan Society of Mechanical Engineers, B編,第76巻, 765号, pp. 763-770, Japanese

    [Refereed]

    Research paper (scientific journal)

  • Terminal velocity of a Taylor drop in a vertical pipe

    HAYASHI Kosuke, Ryo Kurimoto, TOMIYAMA Akio

    May 2010, Proc. of 7th International Conference on Multiphase Flow, ICMF2010, 13 pages

    [Refereed]

    Research paper (international conference proceedings)

  • Terminal velocity of a single drop in a vertical pipe in clean and fully-contaminated systems

    KURIMOTO Ryo, HAYASHI Kosuke, TOMIYAMA Akio

    May 2010, Proc. of International Conference on Multiphase Flow, ICMF2010, 11 pages

    [Refereed]

    Research paper (international conference proceedings)

  • LES-Based Bubble Tracking Simulation of Turbulent Cavitation Flow in Injector Nozzle

    SOU Akira, GOSHIMA Daisuke, KINUGASA Tomoyuki, HAYASHI Kosuke, TOMIYAMA Akio

    May 2010, Proceedings of 7th International Conference on Multiphase Flow, No. 2-1-2, English

    [Refereed]

    Research paper (international conference proceedings)

  • Pressure Drops in Gas-Liquid Two-Phase Flow in a Rod Bundle with Partial Length Rods

    OHTA, Motoki, HOSOKAWA, Shigeo, HAYASHI, Kosuke, TOMIYAMA, Akio

    Mar. 2010, Japanese Journal of Multiphase Flow, Vol. 23, No. 5, pp. 547-554, Japanese

    [Refereed]

    Research paper (scientific journal)

  • Countercurrent Gas-Liquid Flow in a PWR Hot Leg under Reflux Cooling (II) Numerical Simulation of 1/15th Scale Air-Water Tests

    MINAMI Noritoshi, MURASE Michio, TOMIYAMA Akio

    Feb. 2010, Journal of Nuclear Science and Technology, Vol.47, No.2, pp.149-155, English

    [Refereed]

    Research paper (scientific journal)

  • Countercurrent Gas-Liquid Flow in a PWR Hot Leg under Reflux Cooling (I) Air-Water Tests for 1/15th Scale-Down Model of a PWR Hot Leg

    MINAMI Noritoshi, NISHIWAKI Daisuke, NARIAI Toshifumi, TOMIYAMA Akio, MURASE Michio

    Feb. 2010, Journal of Nuclear Science and Technology, Vol.47, No.2, pp.142-148, English

    [Refereed]

    Research paper (scientific journal)

  • Study on Counter-Current Flow in a PWR Hot Leg under Reflux Cooling

    MURASE Michio, TOMIYAMA Akio, MINAMI Noritoshi

    2010, Proc. of the 18th International Conference on Nuclear Engineering, 9 pages, CD-ROM

    [Refereed]

    Research paper (international conference proceedings)

  • Numerical Simulation of Countercurrent Gas-Liquid Flow in a PWR Hot Leg under Reflux Cooling

    KINOSHITA Ikuo, MURASE Michio, UTANOHARA Yoichi, MINAMI Noritoshi, TOMIYAMA Akio

    2010, Journal of Nuclear Science and Technology, Vol. 47, No. 10, pp. 963-972

    [Refereed]

    Research paper (scientific journal)

  • Numerical Calculations for Steam-Water CCFL Tests Using the 1/3rd Scale Rectangular Channel Simulating a PWR Hot Leg

    KINOSHITA Ikuo, MURASE Michio, UTANOHARA Yoichi, LUCAS Dirk, VALLE Christophe, TOMIYAMA Akio

    2010, Proc. of the 8th International Topical Meeting on Nuclear Reactor Thermal Hydraulics, Operation and Safety (NUTHOS-8), N8P0044, 13 pages, CD-ROM

    [Refereed]

    Research paper (international conference proceedings)

  • Numerical Calculations for Air-Water Tests in Different-Scale Models of a PWR Hot Leg

    MURASE Michio, KINOSHITA Ikuo, UTANOHARA Yoichi, LUCAS Dirk, VALLE Christophe, TOMIYAMA Akio

    2010, Proc. of the 18th International Conference on Nuclear Engineering, 9 pages, CD-ROM

    [Refereed]

    Research paper (international conference proceedings)

  • Hybrid Simulation of Bubbly Flow and its Application to Poly-Dispersed Flow

    TOMIYAMA Akio

    2010, The 2nd Brazilian Meeting on Multiphase Flow

    Research paper (international conference proceedings)

  • Comparison of CCFL Experiments Performed in Two Different Models of the Hot Leg of a PWR with Rectangular Cross-Section

    VALLEE Christoph, SEIDEL Tobias, LUCAS Dirk, TOMIYAMA Akio, MICHIO Murase

    2010, Proc. of the 18th International Conference on Nuclear Engineering, 10 pages, CD-ROM

    [Refereed]

    Research paper (international conference proceedings)

  • Bubble Coalescence in a Slurry Bubble Column

    OBATA Satoshi, OJIMA Shinpei, HAYASHI Kosuke, TOMIYAMA Akio

    2010, The 8th Japan-UK Seminar on Multiphase Flow

    Research paper (international conference proceedings)

  • An Evolving Numerical Method for Designing Slurry Bubble Column Reactors

    TANAKA, Masahiro, HAYASHI, Kosuke, TOMIYAMA, Akio

    Jan. 2010, Kagaku-Kogaku, 36-1, 17-24, Japanese

    [Refereed]

    Research paper (scientific journal)

  • Numerical Simulation of Poly-Dispersed Bubbly Flows in Bubble Columns using a Multi-Fluid Model

    TANAKA, Masahiro, HAYASHI, Kosuke, TOMIYAMA, Akio

    Nov. 2009, Transaction of the Japanese Society of Mechanical Engineers, 75-759, pp.2182-2189, Japanese

    [Refereed]

    Research paper (scientific journal)

  • Modeling and Simulation of Bubbly Pipe Flow with Mass Transfer

    TOMIYAMA Akio

    Nov. 2009, Proc. ASME Int. Mechanical Eng. Congress & Exposition, p.1, English

    Research paper (international conference proceedings)

  • Multi-Fluid Simulation of Turbulent Bubbly Pipe Flows

    HOSOKAWA Shigeo, TOMIYAMA Akio

    Oct. 2009, Chemical Engineering Science, Vol. 64, pp. 5308 - 5318, English

    [Refereed]

    Research paper (scientific journal)

  • Application of Photobleaching Molecular Tagging Velocimetry to Turbulent Bubbly Flow in a Square Duct

    HOSOKAWA Shigeo, FUKUNAGA Takayuki, TOMIYAMA Akio

    Oct. 2009, Experiments in Fluids, Vol. 47, pp. 745 - 754, English

    [Refereed]

    Research paper (scientific journal)

  • Pressure Drop in Two-Phase Swirling Flow in a Steam Separator

    KATAOKA Hironobu, SHINKAI Yusuke, TOMIYAMA Akio

    Sep. 2009, Proc. 13th Int. Topical Meeting on Nuclear Reactor Thermal Hydraulics, N13P1180, pp.1011, English

    [Refereed]

    Research paper (international conference proceedings)

  • Numerical Simulation of Bubble Motion about a Grid Spacer in a Rod Bundle

    ZHANG Zheng, HOSOKAWA Shigeo, HAYASHI Kosuke, TOMIYAMA Akio

    Sep. 2009, Journal of Power and Energy Systems, Vol. 3, No. 2, pp. 393 - 404, English

    [Refereed]

    Research paper (scientific journal)

  • Numerical Calculations on Countercurrent Gas-Liquid Flow in a PWR Hot Leg (2) Steam-Water Flow under PWR Plant Conditions

    KINOSHITA Ikuo, UTANOHARA Yoichi, MURASE Michio, MINAMI Noritoshi, TOMIYAMA Akio

    Sep. 2009, Proc. 13th Int. Topical Meeting on Nuclear Reactor Thermal Hydraulics, N13P1040, pp.1-9, English

    [Refereed]

    Research paper (international conference proceedings)

  • Numerical Calculations on Countercurrent Gas-Liquid Flow in a PWR Hot Leg (1) Air-Water Flow in a 1/15th Scale-Model

    MINAMI Noritoshi, UTANOHARA Yoichi, KINOSHITA Ikuo, MURASE Michio, TOMIYAMA Akio

    Sep. 2009, Proc. 13th Int. Topical Meeting on Nuclear Reactor Thermal Hydraulics, N13P1038, pp.1-10, English

    [Refereed]

    Research paper (international conference proceedings)

  • Effects of Swirler Shape on Two-Phase Swirling Flow in a Steam Separator

    SHINKAI Yusuke, KATAOKA Hironobu, TOMIYAMA Akio

    Sep. 2009, Proc. 13th Int. Topical Meeting on Nuclear Reactor Thermal Hydraulics, N13P1182, pp.1-10, English

    [Refereed]

    Research paper (international conference proceedings)

  • Effects of Interfacial Friction Correlations on Numerical Calculations for Countercurrent Gas-Liquid Flow in a PWR Hot Leg

    UTANOHARA Yoichi, KINOSHITA Ikuo, MURASE Michio, MINAMI Noritoshi, TOMIYAMA Akio

    Sep. 2009, Proc. 13th Int. Topical Meeting on Nuclear Reactor Thermal Hydraulics, N13P1101, English

    [Refereed]

    Research paper (international conference proceedings)

  • Effects of Bubbles on Turbulence Properties in a Duct Flow

    HOSOKAWA Shigeo, SUZUKI Takashi, TOMIYAMA Akio

    Sep. 2009, 5th European-Japanese Two-Phase Flow Group Meeting, CD-ROM, English

    [Refereed]

    Research paper (international conference proceedings)

  • Dissolution of Carbon Dioxide Bubbles in Clean and Contaminated Systems

    TOMIYAMA, Akio, ABE, Satoru, HAYASHI, Kosuke, HOSOKAWA, Shigeo

    Sep. 2009, 5th EuropeanTwo-Phase Flow Group Meeting, CD-ROM, 9 pages, English

    [Refereed]

    Research paper (international conference proceedings)

  • Dimensional Analysis of Terminal Velocityof a Taylor Bubble in a Vertical Pipe

    HAYASHI Kosuke, KURIMOTO Ryo, TOMIYAMA Akio

    Sep. 2009, 5th EuropeanTwo-Phase Flow Group Meeting, CD-ROM, 6 pages, English

    [Refereed]

    Research paper (international conference proceedings)

  • Distribution of Carbon Dioxide Bubbles in Clean and Contaminated Waters

    TOMIYAMA Akio, ABE Satoru

    Jul. 2009, Proc. 6th Int. Symp. Multiphase Flow, Heat Transfer and Energy Conversion, pp.1-12, English

    [Refereed]

    Research paper (international conference proceedings)

  • Dimensionless Numbers on Cavitation in a Nozzle of a Plain Orifice Atomizer

    SOU Akira, HOSOKAWA Shigeo, TOMIYAMA Akio

    Jul. 2009, Proceedings of 11th International Conference on Liquid Atomization and Spray Systems (ICLASS 2009), ICLASS2009-019, pp. 1-7, English

    [Refereed]

    Research paper (international conference proceedings)

  • A Drag Correlation of Fluid Particles Rising Through Stagnant Liquids in Vertical Pipes at Intermediate Reynolds Numbers

    HAYASHI Kosuke, TOMIYAMA Akio

    Jun. 2009, Chemical Engineering Science, Vol. 64, Issue 12, pp. 3019-30

    [Refereed]

    Research paper (scientific journal)

  • Progress in Computational Bubble Dynamics

    TOMIYAMA Akio

    May 2009, Proc. Int. Workshop on Multiphase Flows, Simulation, Experiment and Application, pp.1-15, English

    Research paper (international conference proceedings)

  • Counter-Current Two-Phase Flow in a Scale-Down Model of a PWR Hot Leg

    NARIAI Toshifumi, TOMIYAMA Akio

    May 2009, Proc. Int. Workshop on Multiphase Flows, Simulation, Experiment and Application, pp.1-12, English

    [Refereed]

    Research paper (international conference proceedings)

  • A Numerical Experiment of Consecutive Reactions in a Bubble Column

    SHIMADA Naoki, SAIKI Rina, TOMIYAMA Akio

    Apr. 2009, Kagaku Kogaku Ronbunshu, Vol.35, No.4, pp.339-2009, Japanese

    [Refereed]

    Research paper (scientific journal)

  • Air-Water Two-Phase Flow in a Four by Four Rod Bundle with Partial Length Rods

    OHTA Motoki, KAMEI Akihiro, MIZUTANI Yoshitaka, HOSOKAWA Shigeo, TOMIYAMA Akio

    Mar. 2009, Progress in Multiphase Flow Research, Vol. IV, pp. 61-68, Japanese

    [Refereed]

    Research paper (scientific journal)

  • Swirling Annular Flow in a Steam Separator

    KATAOKA Hironobu, SHINKAI Yusuke, HOSOKAWA Shigeo, TOMIYAMA Akio

    Mar. 2009, Trans. ASME, Journal of Engineering for Gas Turbines and Power,, Vol. 131, Issue 3, 032904, English

    [Refereed]

    Research paper (scientific journal)

  • Measurement of Micro Bubbles Generated by a Pressurized Dissolution Method

    HOSOKAWA Shigeo, TANAKA Kenzo, TOMIYAMA Akio, MAEDA Yasunari, YAMAGUCHI Shigeyuki, ITO Yoshihiro

    Mar. 2009, Journal of Physics: Conference Series, Volume 147, 2009, 012016, English

    [Refereed]

    Research paper (international conference proceedings)

  • Pressure Drop in Two-Phase Swirling Flow in a Steam Separator

    KATAOKA Hironobu, SHINKAI Yusuke, TOMIYAMA Akio

    2009, Journal of Power and Energy Systems, Vol.3, No.2, pp.382-391, English

    [Refereed]

    Research paper (scientific journal)

  • Hybrid Multiphase-Flow Simulation of Bubble-Driven Flow in Complex Geometry Using an Immersed Boundary Approach

    TANAKA Masahiro, HAYASHI Kosuke, TOMIYAMA Akio

    2009, Multiphase Science and Technology, Vol. 21, No.1-2, pp. 141-155

    [Refereed]

    Research paper (scientific journal)

  • Effects of Swirler Shape on Two-Phase Swirling Flow in a Steam Separator

    KATAOKA Hironobu, SHINKAI Yusuke, TOMIYAMA Akio

    2009, Journal of Power and Energy Systems, Vol.3, No.2, pp.347-355, English

    [Refereed]

    Research paper (scientific journal)

  • Countercurrent Gas-Liquid Flow in a Rectangular Channel Simulating a PWR Hot Leg (2) (Analytical Evaluation of Countercurrent Flow Limitation)

    MINAMI Noritoshi, Murase Michio, NISHIWAKI Daisuke, TOMIYAMA Akio

    Dec. 2008, Japanese Journal of Multiphase Flow, 22巻, 4号, pp. 413-422, English

    [Refereed]

    Research paper (scientific journal)

  • Countercurrent Gas-Liquid Flow in a Rectangular Channel Simulating a PWR Hot Leg (1) ( Flow Pattern and CCFL Characteristics)

    MINAMI Noritoshi, NISHIWAKI Daisuke, KATAOKA Hironobu, TOMIYAMA Akio, HOSOKAWA Shigeo, MURASE Michio

    Dec. 2008, Japanese Journal of Multiphase Flow, 22巻, 4号, pp. 403-412, Japanese

    [Refereed]

    Research paper (scientific journal)

  • Measurement of Micro Bubbles Generated by a Pressurized Dissolution Method

    HOSOKAWA Shigeo, TANAKA Kenzo, TOMIYAMA Akio, MAEDA Yasunari, YAMAGUCHI Shigeyuki, ITO Yoshiyasu

    Dec. 2008, The 6th International Symposium on Measurement Techniques for Multiphase Flows, Paper No. 027, English

    [Refereed]

    Research paper (international conference proceedings)

  • Modeling and Simulation of Poly-Dispersed Flows

    TOMIYAMA Akio

    Nov. 2008, Proc. ASME Int. Mech. Engng. Congress & Exposition, CD-ROM Paper No. IMECE2008-665, English

    Research paper (international conference proceedings)

  • Void Fraction in a Four by Four Rod Bundle Under a Stagnant Condition

    KAMEI Akihiro, MIZUTANI Yoshitaka, HOSOKAWA Shigeo, TOMIYAMA Akio, MURASE Michio

    Oct. 2008, The 7th International Topical Meeting on Nuclear Ractor Thermal Hydraulics, Operation and Safety (NUTHOS-7), CD-ROM, Paper 155, English

    [Refereed]

    Research paper (international conference proceedings)

  • Numerical Analyses of Countercurrent Air-Water Flow in a Circular Tube Simulating PWR Hot Leg

    MINAMI Noritoshi, MURASE Michio, UTANOHARA Yoichi, TOMIYAMA Akio

    Oct. 2008, Proc. 11th Int. Topical Mtg. Nuclear Reactor Thermal Hydraulics, Operation and Safety, CD-ROM, pp.1-14, English

    [Refereed]

    Research paper (international conference proceedings)

  • Counter-Current Air-Water Flow in a Scale-Down Model of a PWR Hot Leg

    NISHIWAKI Daisuke, TOMIYAMA Akio, HOSOKAWA Shigeo, MINAMI Noritoshi, MURASE Michio

    Oct. 2008, The 7th International Topical Meeting on Nuclear Ractor Thermal Hydraulics, Operation and Safety (NUTHOS-7), CD-ROM, Paper 154, English

    [Refereed]

    Research paper (international conference proceedings)

  • Counter-Current Air-Water Flow in a Scale-Down Model of a PWR Hot Leg

    NiSHIWAKI Daisuke, TOMIYAMA Akio, HOSOKAWA Shigeo, MINAMI Noritoshi, MURASE Michio

    Oct. 2008, 7th International Topical Meeting on Nuclear Ractor Thermal Hydraulics, Operation and Safety (NUTHOS-7), CD-ROM, Paper 154, English

    [Refereed]

    Research paper (international conference proceedings)

  • Measurement of Micro Bubbles Generated by a Pressurized Dissolution Method

    HOSOKAWA Shigeo, TANAKA Kenzo, TOMIYAMA Akio, MAEDA Yasunari, YAMAGUCHI Shigeyuki, ITO Yoshiyasu

    Sep. 2008, US-Japan Seminar on Two-Phase Flow, CD-ROM, English

    [Refereed]

    Research paper (international conference proceedings)

  • Hybrid Multiphase Flow Simulation of Bubble-Driven Flow in Complex Geometry using an Immersed Boundary Approach

    TANAKA Masahiro, GOTO Jun, TOMIYAMA Akio

    Sep. 2008, Proc. 11th Int. Conf. Multiphase Flow in Industrial Plants, pp.13-21, English

    [Refereed]

    Research paper (international conference proceedings)

  • Hybrid Computational Multiphase Fluid Dynamics Method and its Application to Bubble Column

    TOMIYAMA Akio

    Sep. 2008, Proc. 11th Int. Conf. Multiphase Flow in Industrial Plants, pp.XVII-XXIV, English

    Research paper (international conference proceedings)

  • Flamelet movements in lean and rich methane-air and propane-air turbulent premixed flames

    HASHIMOTO Hideki, SOU Akira, TOMIYAMA Akio, FURUKAWA Junichi, WILLIAMS A Forman

    Aug. 2008, Transactions of the Japan Society of Mechanical Engineers, Vol. 74, No. 744, Ser. B, pp., Japanese

    [Refereed]

    Research paper (scientific journal)

  • Ligament Formation Induced by Cavitation in a Cylindrical Nozzle

    SOU Akira, Muhammad Ilham Maulana, HOSOKAWA Shigeo, TOMIYAMA Akio

    Aug. 2008, Journal of Fluid Science and Technology, Vol. 3, No. 5, pp. 633-644, English

    [Refereed]

    Research paper (scientific journal)

  • Effects of Nozzle Geometry on Cavitation in Nozzles of Pressure Atomizer

    SOU Akira, Muhammad Ilham Maulana, ISOZAKI Kenji, HOSOKAWA Shigeo, TOMIYAMA Akio

    Aug. 2008, Journal of Fluid Science and Technology, Vol. 3, No. 5, pp. 622-632, English

    [Refereed]

    Research paper (scientific journal)

  • Dissolution of a Carbon Dioxide Bubble in a Vertical Pipe

    ABE Satoru Abe, OKAWA Hideaki, HOSOKAWA Shigeo, TOMIYAMA Akio

    Aug. 2008, Journal of Fluid Science and Technology, Vol. 3, No. 5, pp. 667-677, English

    [Refereed]

    Research paper (scientific journal)

  • Single Drops Rising Through Stagnant Liquids in a Vertical Pipe

    HAYASHI Kosuke, YOSHIKAWA Yasuki, SOU Akira, TOMIYAMA Akio

    Jul. 2008, Proc. 5th International Conference on Transport Phenomena in Multiphase Systems, CD-ROM, English

    [Refereed]

    Research paper (international conference proceedings)

  • Measurements of Turbulence Properties using Photo Bleaching Molecular Tagging Velocimetry

    HOSOKAWA Shigeo, FUKUNAGA Takayuki, TOMIYAMA Akio

    Jul. 2008, 14th International Symposium on Application of Laser Techniqes to Fluid Mechanics, Lisbon, CD-ROM, English

    [Refereed]

    Research paper (international conference proceedings)

  • Cavitation in a Nozzle of an Atomizer and Its Effects on Liquid Jet

    SOU Akira, Muhammad Ilham Ma, HOSOKAWA Shigeo, TOMIYAMA Akio

    Jul. 2008, Proc. 5th International Conference on Transport Phenomena in Multiphase Systems, CD-ROM, English

    [Refereed]

    Research paper (international conference proceedings)

  • Effects of Inlet Bubble Diameter on Bubbly Flow in a Bubble Column under High Gas Volume Flux Condition

    MAEKAWA Munenori, SOU Akira, HOSOKAWA Shigeo, TOMIYAMA Akio

    Jun. 2008, Transactions of the Japan Society of Mechanical Engineers, Vol.74, No. 742, Ser. B, pp. 1, Japanese

    [Refereed]

    Research paper (scientific journal)

  • Effects of Pick-Off-Ring Configuration on Separation Performance of a Gas-Liquid Separator

    KATAOKA Hironobu, TOMIYAMA Akio, HOSOKAWA Shigeo, SOU Akira, CHAKI Masao

    Jun. 2008, Progress in Multiphase Flow Research, Vol. 3, pp. 67-74, Japanese

    [Refereed]

    Research paper (scientific journal)

  • Effects of Water Contamination on Dissolution of a Carbon Dioxide Bubble in a Vertical Pipe

    ABE Satoru, OKAWA Hideaki, HOSOKAWA Shigeo, TOMIYAMA Akio

    Jun. 2008, Fifth International Conference on Transport Phenomena in Multiphase Systems, English

    [Refereed]

    Research paper (international conference proceedings)

  • Swirling Annular Flow in a Steam Separator

    KATAOKA Hironobu, SOU Akira, HOSOKAWA Shigeo, TOMIYAMA Akio

    May 2008, Proc. Proceedings of the 16th International Conference on Nuclear Engineering, CD-ROM, ICONE16-48077, English

    [Refereed]

    Research paper (international conference proceedings)

  • Motion of Small Bubbles Near a Grid Spacer in a Two by Three Rod Bundle

    ZHANG Zheng, SUZUKI Kana, HOSOKAWA Shigeo, TOMIYAMA Akio

    May 2008, 16th International Conference on Nuclear Engineering (ICONE-16), ICONE16‑48468, English

    [Refereed]

    Research paper (international conference proceedings)

  • Motion of Single Bubbles near a Grid Spacer in a Two by Three Rod Bundle

    ZHANG Zheng, SUZUKI Kana, HOSOKAWA Shigeo, TOMIYAMA Akio

    May 2008, Journal of Fluid Science and Technology, Vol. 3, No. 1, pp. 172-182, English

    [Refereed]

    Research paper (scientific journal)

  • Experiments on Air-Water Countercurrent Flow in a Rectangular Duct Simulating PWR Hot Leg

    MINAMI Noritoshi, NISIWAKI Daisuke, KATAOKA Hironobu, TOMIYAMA Akio, HOSOKAWA Shigeo, MURASE Michio

    May 2008, 16th International Conference on Nuclear Engineering (ICONE-16), ICONE16‑48113, English

    [Refereed]

    Research paper (international conference proceedings)

  • Two-Phase Swirling Flow in a Gas-Liquid Separator

    KATAOKA Hironobu, TOMIYAMA Akio, HOSOKAWA Shigeo, SOU Akira, CHAKI Masao

    Apr. 2008, Journal of Power and Energy Systems, Vol. 2, No. 4, pp. 1120-1131, English

    [Refereed]

    Research paper (scientific journal)

  • Numerical Simulation of Isothermal and Thermal Two-Phase Flows using Phase-Field Modeling

    TAKADA Naoki, TOMIYAMA Akio

    2008, International Journal of Modern Physics C, Vol.37, No.1, pp.79-89, English

    [Refereed]

    Research paper (scientific journal)

  • Numerical Analyses for Counter Current Air-Water Tests with a Reduced Model of PWR Hot Leg using VOF Model

    MURASE Michio, MINAMI Noritoshi, UTANOHARA Yoichi, TOMIYAMA Akio

    2008, Proc. 6th Japan-Korea Symp. Nuclear Thermal Hydraulics and Safety, CD-ROM, pp.1-8, English

    [Refereed]

    Research paper (international conference proceedings)

  • Evaluation of Two-Phase Flow Characteristics in Steam Separator by using a CFD Code

    CHAKI Masao, KATONO Kenichi, KATAOKA Hironobu, TOMIYAMA Akio

    2008, Proc. Int. Congress on Advances in Nuclear Power Plants, pp.1824-1831, English

    [Refereed]

    Research paper (international conference proceedings)

  • Development of Three-Dimensional One-way Bubble Tracking Method for Boiling Flow

    TAMAI Hidesada, TOMIYAMA Akio

    2008, Journal of Power and Energy Systems, Vol.2, No.4, pp.295-305, English

    [Refereed]

    Research paper (scientific journal)

  • Bubble Wake Disturbance of a Stratified Liquid Temperature Layer

    PERPAR M, Zun Iztok, Gregorc J, TOMIYAMA Akio

    2008, Proc. 46the European Two-Phase Flow Group Meeting, p.1, English

    Research paper (international conference proceedings)

  • A Numericsl Study on the Mechanism of Vapor Bubble Lift-off from a Flat Plate

    OKAWA Tomio, HAYASHI Kosuke, TOMIYAMA Akio

    2008, Proc. 6th Japan-Korea Symp. Nuclear Thermal Hydraulics and Safety, CD-ROM, pp.1-8, English

    [Refereed]

    Research paper (international conference proceedings)

  • Qualitative Validity of Volume Tracking Simulation of Bubble Motion with Low Spatial Resolution

    HAYASHI Kosuke, SOU Akira, TOMIYAMA Akio

    Dec. 2007, Journal of Fluid Science and Technology, Vol. 2, No. 2, pp. 490-501, English

    [Refereed]

    Research paper (scientific journal)

  • Numerical Prediction of Poly-Dispersed Bubbly Flow Using a Multi-Fluid Model

    MAEKAWA Munenori, SHIMADA Naoki, SOU Akira, TOMIYAMA Akio

    Dec. 2007, Journal of Fluid Science and Technology, Vol. 2, No. 2, pp. 502-512, English

    [Refereed]

    Research paper (scientific journal)

  • Diameters of Bubbles Released from Single Holes

    MAEKAWA Munenori, HOSOKAWA Shigeo, TOMIYAMA Akio

    Nov. 2007, Transactions of the Japan Society of Mechanical Engineers, B編, 73巻, 735号, pp. 2220-2226, Japanese

    [Refereed]

    Research paper (scientific journal)

  • A Three-Dimensional PIV Using Intensity Gradients of a Two-Color Laser Beam

    HOSOKAWA Shigeo, TOMIYAMA Akio

    Oct. 2007, Multiphase Science and Technology, Vol. 19, No. 3, pp. 269-285, English

    [Refereed]

    Research paper (scientific journal)

  • (Inveted Lecture) Mechanism of Atomization Enhancement by Cavitation in a Nozzle

    SOU Akira, HOSOKAWA Shigeo, TOMIYAMA Akio

    Oct. 2007, Proc. of Annual Conference of Institute for Liquid Atomization and Spray Systems -Korea 2007, pp. 9-14, English

    [Invited]

    Research paper (international conference proceedings)

  • Motion of Single Drops in Linear Shear Flows

    Win Myint, HOSOKAWA Shigeo, TOMIYAMA Akio

    Aug. 2007, Proceedings of 5th Joint ASME/JSME Fluids Engineering Conference, CD-ROM, Paper No.FEDSM2007-374, English

    [Refereed]

    Research paper (international conference proceedings)

  • Effects of Cavitation in a Nozzle on Liquid Jet Atomization

    SOU Akira, HOSOKAWA Shigeo, TOMIYAMA Akio

    Aug. 2007, International Journal of Heat and Mass Transfer, Vol. 50, Iss. 17-18, pp. 3575-, English

    [Refereed]

    Research paper (scientific journal)

  • Dissolution of a Carbon Dioxide Bubble in a Vertical Pipe

    ABE Satoru, OKAWA Hideaki, HOSOKAWA Shigeo, TOMIYAMA Akio

    Aug. 2007, Proceedings of 5th Joint ASME/JSME Fluids Engineering Conference, CD-ROM, Paper No.FEDSM2007-374, English

    [Refereed]

    Research paper (international conference proceedings)

  • Two-Phase Swirling Flow in a Gas-Liquid Separator

    KATAOKA Hironobu, TOMIYAMA Akio, HOSOKAWA Shigeo, SOU Akira, CHAKI Masao

    Jul. 2007, Proc. 6th International Conference on Multiphase Flow, CD-ROM, Paper No. S6_Wed_C_40, English

    [Refereed]

    Research paper (international conference proceedings)

  • Two-Phase Swirling Flow Analysis of a Steam Separator

    KATONO Kenichi, CHAKI Masao, KATAOKA Hironobu, TOMIYAMA Akio

    Jul. 2007, Proc. International Conference on Multiphase Flow 2007 (ICMF 2007), CD-ROM, Paper No. S6_9, pp.1-8, English

    [Refereed]

    Research paper (international conference proceedings)

  • Numerical Simulation of Single Drops in a Vertical Pipe Using Various Coordinate Systems

    HIROKAWA Keishun, HAYASHI Kosuke, SOU Akira, TOMIYAMA Akio, TAKADA Naoki

    Jul. 2007, Proc. 5th Joint ASME/JSME Fluids Engineering Conference, CD-ROM, FEDSM2007-37491, English

    [Refereed]

    Research paper (international conference proceedings)

  • Numerical Prediction of Bubbly Flow in a Bubble Column with Chemisorption

    SHIMADA Naoki, TOMIYAMA Akio, OZAKI Tatsuya

    Jul. 2007, Proc. International Conference on Multiphase Flow 2007 (ICMF 2007), CD-ROM, Paper No. S6_Tue_D_28,, English

    [Refereed]

    Research paper (international conference proceedings)

  • Multi-Fluid Simulation of Turbulent Bubbly Pipe Flows

    HOSOKAWA Shigeo, SOU Akira, TOMIYAMA Akio

    Jul. 2007, Proc. International Conference on Multiphase Flow 2007 (ICMF 2007), CD-ROM, Paper No. S6_Thu_B_52, English

    [Refereed]

    Research paper (international conference proceedings)

  • Cavitation in Cylindrical Nozzles and Two-Dimensional Nozzles

    SOU Akira, Muhammad Ilham Maulana, HOSOKAWA Shigeo, TOMIYAMA Akio

    Jul. 2007, Proc. International Conference on Multiphase Flow 2007 (ICMF 2007), CD-ROM, Paper No S4_Mon_C_5, English

    [Refereed]

    Research paper (international conference proceedings)

  • Cavitation in a Nozzle and Its Effects on Liquid Jet Atomization

    SOU Akira, HOSOKAWA Shigeo, TOMIYAMA Akio

    Jul. 2007, Proc. Japan-UK Mini-Seminar on Multiphase Flow 2007, CD-ROM, pp. 1-21., English

    Research paper (international conference proceedings)

  • Two-phase Flow Patterns in a Four by Four Rod Bundle

    MIZUTANI Yoshitaka, TOMIYAMA Akio, HOSOKAWA Shigeo, SOU Akira, KUDO Yoshiro, MISHIMA Kaichiro

    Jun. 2007, Journal of Nuclear Science and Technology, Vol. 44, No. 6, pp. 1-8, English

    [Refereed]

    Research paper (scientific journal)

  • Multi-Fluid and Particle-Tracking Methods for Predicting Poly-Dispersed Flows (Keynote Lecture)

    TOMIYAMA Akio, HOSOKAWA Shigeo, SOU Akira

    May 2007, Proc. 45th European Two-Phase Flow Group Meeting, p. 2, English

    [Refereed][Invited]

    Research paper (international conference proceedings)

  • Bubble Dissolution of CO2-Water Two Phase Bubbly Flows in a Vertical Pipe

    ABE Satoru, NOZAWA Satoshi, HOSOKAWA Shigeo, TOMIYAMA Akio

    Apr. 2007, Progress in Multiphase Flow Research, Vol. 2, pp. 9-16, Japanese

    [Refereed]

    Research paper (scientific journal)

  • Study on Lift Force acting on Single Drops in Linear Shear Flows

    OGAWA Kohei, Win Myint, HOSOKAWA Shigeo, TOMIYAMA Akio

    Apr. 2007, Progress in Multiphase Flow Research, Vol. 2, pp. 55-62, Japanese

    [Refereed]

    Research paper (scientific journal)

  • Shapes of Single Drops Rising Through Stagnant Liquids

    Win Myint, HOSOKAWA Shigeo, TOMIYAMA Akio

    Apr. 2007, Journal of Fluid Science and Technology, Vol. 2, No. 1, pp. 184-195, English

    [Refereed]

    Research paper (scientific journal)

  • Numerical Simulation of Two-Phase Flows with Phase Change using a Phase-Field Method

    TAKADA Naoki, TOMIYAMA Akio

    Mar. 2007, Progress in Multiphase Flow Research, Vol.II, pp.173-180, Japanese

    [Refereed]

    Research paper (scientific journal)

  • Measurements of Rising Velocity of a Small Bubble in a Stagnant Fluid in One- and Two-Component Systems

    CELATA Gian Piero, DANNIBALE Francesco, DI MARCO Paolo, MEMOLI Gianlucca, TOMIYAMA Akio

    2007, Experimental Thermal and Fluid Science, Vol.31, pp.609-623, English

    [Refereed]

    Research paper (scientific journal)

  • Mass Transfer in Carbon Dioxide - Water Bubbly Pipe Flow (Keynote Lecture)

    TOMIYAMA Akio, ABE Satoru, HOSOKAWA Shigeo

    2007, Proc. 18th Int. Symp. Transport Phenomena, pp.215-223, English

    Research paper (international conference proceedings)

  • Interface Tracking Simulation of Bubbles and Drops in Complex Geometries

    HAYASHI Kosuke, TOMIYAMA Akio

    2007, Multiphase Science and Technology, Vol.19, No.2, pp.121-140, English

    [Refereed]

    Research paper (scientific journal)

  • Dissolution of Carbon Dioxide Bubbles in a Vertical Pipe (Plenary Lecture)

    TOMIYAMA Akio, ABE Satoru

    2007, Proc. 25th UIT National Heat Transfer Conference (CD-ROM), pp.1-8, English

    Research paper (scientific journal)

  • Application of a Two-Phase Flow Model based on Local Relative Velocity to Solid-Liquid Two-Phase Flows with Coarse Particles

    MINAGAWA Hisato, SHAKUTSUI Hideaki, TOMIYAMA Akio

    2007, Journal of Fluid Science and Technology, Vol.2, No.1, English

    [Refereed]

    Research paper (scientific journal)

  • Motion of Small Bubbles in High-Speed Flows in a Vertical Duct Containing an Obstacle

    Zhang Zheng, Shigeo Hosokawa, Hironobu Kataoka, Yasushi Makino, TOMIYAMA Akio

    Jan. 2007, Transactions of the Japan Society of Mechanical Engineers, B編, 73巻, 725号, pp. 162-168, Japanese

    [Refereed]

    Research paper (scientific journal)

  • Motion of Small Bubbles near an Obstacle Placed in a Square Duct

    ZHENG Zhang, SUZUKI Kana, MAKINO Yaushi, HOSOKAWA Shigeo, TOMIYAMA Akio

    Dec. 2006, Proc. 5th International Symposium on Measurement Techniques for Multiphase Flows (5th ISMTMF), Vol. 1, pp. 45-50, English

    [Refereed]

    Research paper (international conference proceedings)

  • A Three-Dimensional PIV using Intensity Gradients of a Two-Color Laser Beam

    HOSOKAWA Shigeo, TOMIYAMA Akio, SAJI Akihiro

    Dec. 2006, 5th International Symposium on Measurement Techniques for Multiphase Flows (5th ISMTMF), Vol. 1, pp. 518-525, English

    [Refereed]

    Research paper (international conference proceedings)

  • Numerical Prediction of Heterogeneous Bubbly Flow Using a Multi-Fluid Model

    MAEKAWA Munenori, SHIMADA Naoki, SOU Akira, TOMIYAMA Akio

    Nov. 2006, 日本機械学会論文集, Vol. 72, No. 723, (B), pp. 268, Japanese

    [Refereed]

    Research paper (scientific journal)

  • Cavitation in a Two-Dimensional Nozzle and Liquid Jet Atomization (LDV Measurement of Liquid Velocity in a Nozzle)

    SOU Akira, TOMIYAMA Akio, HOSOKAWA Shigeo, NIGORIKAWA Shinji, MAEDA Tatsutoshi

    Nov. 2006, JSME International Journal, Vol. 49, No. 4, Ser. B, pp. 12, English

    [Refereed]

    Research paper (scientific journal)

  • Qualitative Validity of Volume Tracking Simulation of Bubble Motion with Low Spatial Resolution

    HAYASHI Kosuke, SOU Akira, TOMIYAMA Akio

    Oct. 2006, 日本機械学会論文集, Vol. 72, No. 722, (B), pp. 241, Japanese

    [Refereed]

    Research paper (scientific journal)

  • A Numerical Method for Two-Phase Flow Based on a Phase-Field Model

    TAKADA Naoki, TOMIYAMA Akio

    Oct. 2006, JSME Int. J. Ser. B, Vol.49, No.3, pp.636-643, English

    [Refereed]

    Research paper (scientific journal)

  • Application of Cahn-Hilliard Equation to the Evaluation of Surface Tension Force

    HAYASHI Kosuke, TAKADA Naoki, TOMIYAMA Akio

    Sep. 2006, Japanese Journal of Multiphase Flow, 20巻3号, pp.244-251, Japanese

    [Refereed]

    Research paper (scientific journal)

  • Interface Tracking Simulation of Bubbles and Drops in Complex Geometries

    HAYASHI, Kosuke, TOMIYAMA, Akio

    Sep. 2006, 4th Japanese-European Two-Phase Flow Group Meeting, CD-ROM (8 pages)

    [Refereed]

    Research paper (international conference proceedings)

  • Interface Tracking Simulation of Bubbles and Drops in Complex Geometries

    HAYASHI Kosuke, TOMIYAMA Akio

    Sep. 2006, Proc. 4th Japanese-European Two-Phase Flow Group Meeting, pp.1-7, English

    [Refereed]

    Research paper (scientific journal)

  • Effects of Bubble Wake on Coalescence Between Planar Bubbles

    HOSOKAWA Shigeo, TOMIYAMA Akio

    Sep. 2006, Journal of Fluid Science and Technology, Vol. 1, No. 2, pp. 94-104, English

    [Refereed]

    Research paper (scientific journal)

  • A Three-Dimensional PIV using Intensity Gradients of a Two-Color Laser Beam

    HOSOKAWA Shigeo, TOMIYAMA Akio

    Sep. 2006, 4th Europien-Japanese Two-Phase Flow Group Meeting, CD-ROM, English

    [Refereed]

    Research paper (international conference proceedings)

  • Terminal Velocities of Single Drops in Stagnant Liquids

    Win Myint, HOSOKAWA Shigeo, TOMIYAMA Akio

    Aug. 2006, Journal of Fluid Science and Technology, Vol. 1, No. 2, pp. 72-81, English

    [Refereed]

    Research paper (scientific journal)

  • Numerical Simulation of Cavitating Flow in a Nozzle by One-Way Bubble Tracking Method

    Muhammad Ilham Maulana, SOU Akira, TOMIYAMA Akio

    Aug. 2006, Proc. 15th Indonesian Scientific Conference in Japan, CD-ROM, F0105, English

    [Refereed]

    Research paper (international conference proceedings)

  • Effects of Cavitation in a Nozzle on Liquid Jet Atomization

    SOU Akira, Muhammad Ilham Maulana, HOSOKAWA Shigeo, TOMIYAMA Akio

    Aug. 2006, Proc. 10th International Conference on Liquid Atomization and Spray Systems (ICLASS 2006), CD-ROM, ICLASS06-043, pp. 1-7, English

    [Refereed]

    Research paper (international conference proceedings)

  • Two-Phase Flow patterns in a Four by Four Rod Bundle

    MIZUTANI Yoshitaka, HOSOKAWA Shigeo, TOMIYAMA Akio

    Jul. 2006, Proc. 14th International Conference on Nuclear Engineering (ICONE-14), CD-ROM, Paper No. ICONE14-8933, English

    [Refereed]

    Research paper (international conference proceedings)

  • Numerical Simulation of Heterogeneous Bubbly Flow in a Bubble Column

    MAEKAWA Munenori, SHIMADA Naoki, KINOSHITA Koji, SOU Akira, TOMIYAMA Akio

    Jul. 2006, Proc. ASME Fluids Engineering Division Summer Meeting 2006, CD-ROM, FEDSM2006-98178, English

    [Refereed]

    Research paper (international conference proceedings)

  • A Volume Tracking Method Based on Non-Uniform Subcells and Continuum Surface Force Model Using a Local Level Set Function

    HAYASHI Kosuke, SOU Akira, TOMIYAMA Akio

    Jul. 2006, Computational Fluid Dynamics Journal, Vol. 15, Iss. 2, pp. 225-232, English

    [Refereed]

    Research paper (scientific journal)

  • A Hybrid Method for Simulating Flows including Fluid Particles

    MAEDA Akiyoshi, SOU Akira, TOMIYAMA Akio

    Jul. 2006, Proc. ASME Fluids Engineering Division Summer Meeting 2006, CD-ROM, FEDSM2006-98156, English

    [Refereed]

    Research paper (international conference proceedings)

  • A Hybrid Method for Predicting Dispersed Gas-Liquid and Liquid-Liquid Multi-Phase Flows

    SAKODA Kenichi, SOU Akira, TOMIYAMA Akio

    Apr. 2006, Progress in Multiphase Flow Research, 1, pp. 163-170, Japanese

    [Refereed]

    Research paper (scientific journal)

  • A Phase-Field Method for Interface-Tracking Simulation of Two-Phase Flows

    TAKADA Naoki, MISAWA Masaki, TOMIYAMA Akio

    Apr. 2006, Progress in Multiphase Flow, 1, Japanese

    [Refereed]

    Research paper (scientific journal)

  • Effects of the Cavitation and Reynolds Numbers on Cavitating Flow in a Two-Dimensional Nozzle

    SOU Akira, Muhammad Ilham Maulana, HOSOKAWA Shigeo, TOMIYAMA Akio

    Apr. 2006, Progress in Multiphase Flow Research, Vol. 1, pp. 65-70, Japanese

    [Refereed]

    Research paper (scientific journal)

  • Modeling and Hybrid Simulation of Bubbly Flow

    TOMIYAMA Akio, SAKODA Kenichi, HAYASHI Kosuke, SOU Akira, SHIMADA Naoki, HOSOKAWA Shigeo

    Mar. 2006, Multiphase Science and Technology, Vol.18, No.1, pp.73-110, English

    [Refereed]

    Research paper (scientific journal)

  • Cavitation in a Two-Dimensional Nozzle and Liquid Jet Atomization (2nd Report, LDV Measurement of Liquid Velocity in a Nozzle)

    SOU Akira, TOMIYAMA Akio, HOSOKAWA Shigeo, NIGORIKAWA Shinji, MAEDA Tatsutoshi

    Feb. 2006, 日本機械学会論文集(B編), Vol. 72, No. 714, pp. 521-527, Japanese

    [Refereed]

    Research paper (scientific journal)

  • Cavitation in a Two-Dimensional Nozzle and Liquid Jet Atomization (1st Report, Ultra-High Speed Visualization)

    SOU Akira, TOMIYAMA Akio, HOSOKAWA Shigeo, NIGORIKAWA Shinji, MATSUMOTO Yoichiro

    Feb. 2006, 日本機械学会論文集(B編), Vol. 72, No. 714, pp. 513-520., Japanese

    [Refereed]

    Research paper (scientific journal)

  • Still Struggling with Computational Bubble Dynamics

    TOMIYAMA Akio

    2006, Proc. Int. Seminar on Multiphase Flow Phenomena, pp.1-7, English

    Research paper (scientific journal)

  • Interface Tracking Simulation of Two-Phase Flows by Phase-Field Method

    TAKADA Naoki, TOMIYAMA Akio

    2006, Proc. ASME Joint U.S.-European Fluids Engineering Summer Meeting, pp.1-6, English

    [Refereed]

    Research paper (scientific journal)

  • Effects of Inlet Bubble Size on Poly-Dispersed Bubbly Flow in a Bubble Column

    TOMIYAMA Akio, SOU Akira, HOSOKAWA Shigeo

    2006, Proc. 44th European Two-Phase Flow Group Meeting, pp.1-8, English

    [Refereed]

    Research paper (international conference proceedings)

  • Effect of Gas Injection Mode and Purity of Liquid on Bubble Rising in Two-Component Systems

    CELATA Gian Piero, CUMO Maurizio, D ANNIBALE Francesco, DI MARCO Paolo, TOMIYAMA Akio, ZOVINI Chiara

    2006, Experimental Thermal and Fluid Science, Vol.31, Issue 1, pp.37-53, English

    [Refereed]

    Research paper (scientific journal)

  • Application of Interface-Tracking Method based on Phase-Field Model to Numerical Analysis of Free Surface Flow

    TAKADA Naoki, TOMIYAMA Akio

    2006, Theoretical and Applied Mechanics Japan, Vol.55, pp.149-156, English

    [Refereed]

    Research paper (scientific journal)

  • A Phase-Field Method for Interface-Tracking Simulation of Two-Phase Flows

    TAKADA Naoki, MISAWA Masaki, TOMIYAMA Akio

    2006, Mathematics and Computers in Simulation, Vol.72, Issues 2-6, pp.220-226, English

    [Refereed]

    Research paper (scientific journal)

  • A Hybrid Method for Predicting Dispersed Gas-Liquid and Liquid-Liquid Multi-Phase Flows

    SAKODA Kenichi, SOU Akira, TOMIYAMA Akio

    Dec. 2005, 日本機械学会論文集(B編), Vol. 71, No. 712, pp. 2884-289, Japanese

    [Refereed]

    Research paper (scientific journal)

  • Application of a Two-Phase Flow Model based on Local Relative Velocity to Solid-Liquid Two-Phase Flows with Coarse Particles

    MINAGAWA Hisato, SHAKUTSUI Hideaki, 冨山 明男

    Sep. 2005, Transactions of the Japan Society of Mechanical Engineers, Ser. B, Vol.71, No.709, pp.2264-2271, Japanese

    [Refereed]

    Research paper (scientific journal)

  • Toward Hybrid Simulation of Bubbly Flow (Invited Lecture)

    TOMIYAMA Akio, SAKODA Kenichi, HAYASHI Kosuke

    Sep. 2005, Proc. Int. Minisymposium on Challenger and Adavances in Flow SImulation and Modeling, p.276, English

    Research paper (international conference proceedings)

  • Dissolution of Carbon Dioxide in a CO2-Water Bubbly Upflow in a Vertical Pipe

    TOMIYAMA Akio, SHIMA Toshihide, HOSOKAWA Shigeo, SOU Akira

    Sep. 2005, Proc. Japan-UK Mini-Seminar on Multiphase Flow, pp.1-5, English

    Research paper (international conference proceedings)

  • A Numerical Method for Solving Bubbly Flow with Chemisorption in a Bubble Column

    SHIMADA Naoki, 冨山 明男, Maekawa Munenori, SUZUTA Tetsuya, OZAKI Tatsuya

    Jun. 2005, Kagaku Kogaku Ronbunshu, Vol.31, No.6, pp.377-387, Japanese

    [Refereed]

    Research paper (scientific journal)

  • LDV Measurement of Cavitating Flows in a Two-Dimensional Nozzle

    SOU Akira, TOMIYAMA Akio, HOSOKAWA Shigeo, NIGORIKAWA Shinji, MATSUMOTO Yoichiro

    Jun. 2005, Proc. International Symposium on Heat and Mass Transfer in Spray Systems, CD-ROM, #29, pp. 1-10., English

    Research paper (international conference proceedings)

  • A Volume Tracking Method based on Advanced Subgrid Counting Algorithm

    HAYASHI Kosuke, Win Myint, SOU Akira, TOMIYAMA Akio

    Jun. 2005, Proc. 2005 ASME Fluids Engineering Division Summer Meeting, CD-ROM, FEDSM2005-77396, English

    [Refereed]

    Research paper (international conference proceedings)

  • Molecular Tagging Velocimetry based on Photobleaching Reaction for Measuring Liquid Velocity and Velocity Gradients

    HOSOKAWA Shigeo, TOMIYAMA Akio

    May 2005, Proc. 13th International Conference on Nuclear Engineering, (CD-ROM), (CD-ROM), 1-10, English

    [Refereed]

    Research paper (international conference proceedings)

  • Measurement of Two-Phase Flow Patterns in a Four by Four Rod Bundle

    TOMIYAMA Akio, SOU Akira, HOSOKAWA Shigeo, MITSUHASHI Masao, NODA Kohei, TSUBO Yasushi, MISHIMA Kaichiro, KUDO Yoshiro

    May 2005, Proc. 13th International Conference on Nuclear Engineering, pp.1-8, English

    [Refereed]

    Research paper (international conference proceedings)

  • Computational Multiphase Fluid Dynamics for Gas-Liquid Systems (Keynote Lecture)

    TOMIYAMA Akio

    May 2005, Proc. 43rd European Two-Phase Flow Group Meeting, pp.1, English

    Research paper (international conference proceedings)

  • Numerical Simulation of Liquid Jet Deformation Based on Hybrid Combination of Interface Tracking and Bubble Tracking Methods

    SOU Akira, TOMIYAMA Akio

    Apr. 2005, Multiphase Science and Technology, Vol. 17, No. 1, pp. 23-41, English

    [Refereed]

    Research paper (scientific journal)

  • Image Processing of Bubble Shape and Motion Based on Curvature Evaluation From Bubble Image

    HOSOKAWA Shigeo, TOMIYAMA Akio

    Apr. 2005, Proc. 6th World Conference on Experimental Heat Transfer, Fluid Mechanics and Thermodynamics (ExHTF6), 1-8, English

    [Refereed]

    Research paper (international conference proceedings)

  • 流体密度の温度・圧力依存性を考慮した気液二相流の数値解法

    島田 直樹, 冨山 明男

    2005, 化学工学論文集, 31-1,15-24, Japanese

    [Refereed]

    Research paper (scientific journal)

  • Cavitation and Internal Flow in a Two-Dimensional Injector Nozzle

    SOU Akira, TOMIYAMA Akio, HOSOKAWA Shigeo, NIGORIKAWA Shinji, MATSUMOTO Yoichiro

    Dec. 2004, Proc.6th US-Japan Seminar on Two-Phase Flow Dynamics, 1, 217-225, English

    [Refereed]

    Research paper (international conference proceedings)

  • A Volume Tracking Method for Multi-Phase Flow Simulation (Improvement of an Interface Reconstruction Method)

    宋 明良, 林 公祐, 冨山 明男

    Oct. 2004, 日本機械学会論文集(B編), 70-698, 2538-2544, Japanese

    [Refereed]

    Research paper (scientific journal)

  • Effect of Bebble Size on a BebblePlume and Bubbly Flow in a Bubble Column

    MAEKAWA Munenori, TOMIYAMA Akio, KAGEYAMA Masato, YOSHIDA Satoru, SOU Akira, Zun Iztok

    Sep. 2004, 3rd Int.Symp.on Two-Phase Flow Modelling and Experimenntation, CD-ROM, English

    [Refereed]

    Research paper (international conference proceedings)

  • Visualization of Cavitation in a Two-Dimensional Nozzle and Liquid Jet

    SOU Akira, TOMIYAMA Akio, HOSOKAWA Shigeo, NIGORIKAWA Shinji, MATSTUMOTO Yoichiro

    May 2004, Proc. 5th International Conference on Multiphase Flow, Paper №479, pp.1-12, English

    [Refereed]

    Research paper (international conference proceedings)

  • 正方形ダクト内単一気泡の形状と上昇速度に関する研究

    中原 裕介, 冨山 明男, 細川 茂雄

    Feb. 2004, 日本機械学会論文集(B編), Vol.70,No.690,pp.356-362, Japanese

    [Refereed]

    Research paper (scientific journal)

  • 統計熱力学的界面モデルを用いたせん断流中における液滴挙動の数値シミュレーション

    高田 尚樹, 冨山 明男

    2004, 日本機械学会論文集(B編), 70-699,2712-2720, Japanese

    [Refereed]

    Research paper (scientific journal)

  • 三次元One-Way気泡追跡法に基づく未発達気泡・スラグ流の予測(第2報:実験結果と計算結果の比較)

    玉井 秀定, 冨山 明男

    2004, 日本機械学会論文集(B編), 70-692,888-895, Japanese

    [Refereed]

    Research paper (scientific journal)

  • 鉛直円管内低粒子濃度固気二相流の乱流変調に及ぼす相関相対速度の影響

    細川 茂雄, 冨山 明男

    2004, 混相流, 18-3,255-262, Japanese

    [Refereed]

    Research paper (scientific journal)

  • Turbulence modification in gas-liquid and solid-liquid despersed two-phase pipe flows

    HOSOKAWA Shigeo, TOMIYAMA Akio

    2004, International Jounal of Heat and Fluid Flow, 25-3,489-498, English

    [Refereed]

    Research paper (scientific journal)

  • PHASE-FIELD MODELに基づく二相流数値計算手法

    高田 尚樹, 冨山 明男

    2004, 日本機械学会論文集(B編), 71-701,117-124, Japanese

    [Refereed]

    Research paper (scientific journal)

  • Modelong and Hybrid Simulation of Bubbly Flow(Keynote Lecture)

    TOMIYAMA Akio, SAKODA Kenichi, HAYASHI Kosuke, SOU Akira, SHIMADA Naoki, HOSOKAWA Shigeo

    2004, Proc.6th US-Japan Seminar on Two-Phase Flow Dynamics, 1,1-16, English

    [Refereed]

    Research paper (international conference proceedings)

  • Modecular tagging velocimetry based on photobleaching feaction and it's application to flows around single fluid particles

    HOSOKAWA Shigeo, TOMIYAMA Akio

    2004, Multiphase Science and Technology, 16-4,335-353, English

    [Refereed]

    Research paper (scientific journal)

  • Effect of Gas-Injection Mode and Purity of Liquid on Bubble Rising in Two-Component Systems

    Gian Piero Celata, Maurizio Cumo, Francesco D'Annibale, Paolo Di Marco, TOMIYAMA Akio, Chiara Zovini

    2004, Proc.5th Int.Conf.on Multiphase Flow(CD-ROM), 1-12, English

    [Refereed]

    Research paper (international conference proceedings)

  • Current Status of Generalized Boiling Transition Model Development Applicable to a Wide Variety of Fuel Bundle Geometry

    NINOKATA Hisashi, SADATOMI Michio, OKAWA Tomio, SERIZAWA Akimi, MISHIMA Kaichiro, KOSHIZUKA Seiichi, TOMIYAMA Akio, YAMAMOTO Yasushi, KUDO Yoshiro, HOTTA Akitoshi, NISHIDA Koji, SHIRAKAWA Noriyuki

    2004, Proc.6th Int.Conf.on Nuclear Thermal Hydraulics,Opereations and Safety(CD-ROM),Nara,Japan, P-ID:N6P363,1-18, English

    [Refereed]

    Research paper (international conference proceedings)

  • An image processing method for evaluating interface Curvature and its application to gas-liquid bubble flower in a vertical pipe

    HOSOKAWA Shigeo, TOMIYAMA Akio

    2004, Proc.6th US-Japan Seminar on Two-Phase Flow Dynamics, 1,199-205, English

    [Refereed]

    Research paper (international conference proceedings)

  • 気泡塔内気泡流数値予測に必要となる相関式の感度解析

    島田 直樹, 冨山 明男, Iztok Zun, 浅野 浩幸

    Nov. 2003, 化学工学論文集, Vol.29,No.6,pp.778-786, Japanese

    [Refereed]

    Research paper (scientific journal)

  • Two-Way Bubble Tracking Simulation of Void Wave Ceneration in a Bubbly Pipe Flow.

    TOMIYAMA Akio, SAKODA Kenichi, TAKADA Naoki

    Oct. 2003, Comp. Fluid Dynamics, J., Vol.12,No.3,pp.482-490, English

    [Refereed]

    Research paper (scientific journal)

  • Numerical Simulation of Drops in a Shear Flow by a Lattice-Boltzmann Binary Fluid Model.

    TAKADA Naoki, TOMIYAMA Akio, HOSOKAWA Shigeo

    Oct. 2003, Comp. Fluid Dynamics, J., Vol.12,No.3,pp.475-481, English

    [Refereed]

    Research paper (scientific journal)

  • 鉛直管内単一気泡の形状と上昇速度に関する研究

    中原 裕介, 冨山 明男

    Sep. 2003, 日本機械学会論文集(B編), Vol.69,No.685,pp.2002-2009, Japanese

    [Refereed]

    Research paper (scientific journal)

  • The Wake Effect on the Rising Velocity of Small Bubbles.

    Gian Piero Celata, Marurizio Cumo, Francesco D'Annibale, TOMIYAMA Akio

    Sep. 2003, Proc. 3rd European-Japanese Two-Phase Flow Group Meeting., CD-ROM, English

    [Refereed]

    Research paper (international conference proceedings)

  • Numerical Simulation of Liquid Jet Deformation Based on Hybrid Combination of Interface and Bubble Tracking Methods.

    SOU Akira, TOMIYAMA Akio

    Sep. 2003, Proc. 3rd European-Japanese Two-Phase Flow Group Meeting., CD-ROM, English

    [Refereed]

    Research paper (international conference proceedings)

  • Bubble Rising Velocity in Two-Component Systems.

    Gian Piero Celata, Francesco D'Annibale, Paolo Di Marco, Walter Grassi, Gianlucca Memoli, TOMIYAMA Akio

    Sep. 2003, Proc. 3rd European-Japanese Two-Phase Flow Group Meeting., CD-ROM, English

    [Refereed]

    Research paper (international conference proceedings)

  • Lattice Boltzmann Simulation of Drops in a Shear Flow.

    TAKADA Naoki, TOMIYAMA Akio, HOSOKAWA Shigeo

    Jul. 2003, Proc. 4th ASMER-JSME Joint Fluids Engineering Conf., CD-ROM, English

    [Refereed]

    Research paper (international conference proceedings)

  • Application of Number Density Transport Equation to the Recovery of Consistency in Multi-Fluid Model.

    TOMIYAMA Akio, SHIMADA Naoki, ASANO Hiroyuki

    Jul. 2003, Proc. 4th ASMER-JSME Joint Fluids Engineering Conf., CD-ROM, English

    [Refereed]

    Research paper (international conference proceedings)

  • Influence of Electric Field on Single Gas-Bubble Growth and Detachment in Microgravity.

    Paolo Di Marco, Walter Grassi, Gianlucca Memoli, TAKAMASA Tomiji, TOMIYAMA Akio, HOSOKAWA Shigeo

    Apr. 2003, Int. J. Multiphase Flow, Vol.29,pp.559-578, English

    [Refereed]

    Research paper (scientific journal)

  • Shapes and Rising Velocities of Single Bubbles rising through an Inner Subchannel

    TOMIYAMA Akio, NAKAHARA Yusuke, ADACHI Yoshihiro, HOSOKAWA Shigeo

    Mar. 2003, Journal of Nuclear Science and Technology, Vol. 40, No. 3, pp.136-142, English

    [Refereed]

    Research paper (scientific journal)

  • An Interface Tracking Method based on Volume Tracking in Micro Cells embedded in Regular Computational Cells

    TOMIYAMA Akio, NAKAHARA Yusuke, HOSOKAWA Shigeo

    Mar. 2003, CFD Journal, Vol. 11. No. 4, pp. 411-419, English

    [Refereed]

    Research paper (scientific journal)

  • 壁面近傍を上昇する単一非球形気泡に働く横方向力

    細川 茂雄, 冨山 明男

    2003, 日本機械学会論文集(B編), 69巻686号,pp.2214-2220, Japanese

    [Refereed]

    Research paper (scientific journal)

  • 下降ー上昇傾斜管のV字部において発生する液体スラグの特性

    細川 茂雄, 冨山 明男

    2003, 日本機械学会論文集(B編), 69巻686号,pp.2214-2220, Japanese

    [Refereed]

    Research paper (scientific journal)

  • Turbulence modification in gas-liquid and solid-liquid dispersed two-phase pipe flows.

    HOSOKAWA Shigeo, TOMIYAMA Akio

    2003, Turbulence and Shear Flow Phenomena-2003(TSFP-3), Vol.1,pp.191-196, English

    [Refereed]

    Research paper (international conference proceedings)

  • Shapes and Rising Velocities of Single Bubbles rising through an Inner Subchannel

    TOMIYAMA Akio, NAKAHARA Yusuke, ADACHI Yoshihiro, HOSOKAWA Shigeo

    2003, Journal Nuclear Science and Technology, 40(3), 330-341, English

    Research paper (scientific journal)

  • PIV Measurement of pressure distribution about Single Bubble.

    HOSOKAWA Shigeo, MORIYAMA S, TOMIYAMA Akio, TAKADA N

    2003, Journal of Nuclear Science and Technology., Vol.40,No.10,pp.755-763, English

    [Refereed]

    Research paper (scientific journal)

  • Measurement of Liquid Velocity around Single Bubbles Using Photobleaching.

    HOSOKAWA Shigeo, TOMIYAMA Akio

    2003, 3rd European-Japanese Two Phase Flow Group Meeting 2003, CD-ROM, English

    [Refereed]

    Research paper (international conference proceedings)

  • An Interface Tracking Method based on Volume Tracking in Micro Cells embadded in Regular Computational Cells

    TOMIYAMA Akio, NAKAHARA Yusuke, HOSOKAWA Shigeo

    2003, Computational Fluid Dynamics Journal, 11(4), 411-419, English

    Research paper (scientific journal)

  • Two-way Bubble Tracking Simulation of Void Wave Generation in a Bubbly Pipe Flow

    TOMIYAMA Akio, SAKODA Kenichi, HOSOKAWA Shigeo

    Nov. 2002, Proc. 5th JSME-KSME Fluid Engineering Conference, English

    [Refereed]

    Research paper (international conference proceedings)

  • Lattice Boltzmann simulation of two-phase fluid motion

    TAKADA Naoki, TOMIYAMA Akio, HOSOKAWA Shigeo

    Nov. 2002, Proc. 5th JSME-KSME Fluid Engineering Conference, English

    [Refereed]

    Research paper (international conference proceedings)

  • Interface Tracking Simulation of Large Bubbles in Vertical Conduits

    TOMIYAMA Akio, NAKAHARA Yusuke, ADACHI Yoshihiro, HOSOKAWA Shigeo

    Nov. 2002, Proc. 5th JSME-KSME Fluid Engineering Conference, English

    [Refereed]

    Research paper (international conference proceedings)

  • Bubble-induced pseudo turbulence in a vertical pipe

    HOSOKAWA Shigeo, TOMIYAMA Akio, KONDO Yuichi

    Nov. 2002, Proc. 5th JSME-KSME Fluid Engineering Conference, English

    [Refereed]

    Research paper (international conference proceedings)

  • Shape and Rising Velocities of Single Bubbles rising through an Inner Subchannel

    TOMIYAMA Akio, NAKAHARA Yusuke, ADACHI Yoshihiro, HOSOKAWA Shigeo

    Oct. 2002, Proc. Third Korea-Japan Symposium on Nuclear Thermal Hydraulics and Safety, NTHAS3, English

    [Refereed]

    Research paper (international conference proceedings)

  • PIV Measurement of Pressure Distributions about Single Bubbles

    HOSOKAWA Shigeo, MORIYAMA Satoshi, TOMIYAMA Akio, TAKADA Naoki

    Oct. 2002, Proc. Third Korea-Japan Symposium on Nuclear Thermal Hydraulics and Safety, NTHAS3, English

    [Refereed]

    Research paper (international conference proceedings)

  • Terminal Velocity of Single Bubbles in Surface Tension Force Dominant Regime

    TOMIYAMA Akio, Gian Piero Celata, HOSOKAWA Shigeo, YOSHIDA Satoru

    Sep. 2002, International Journal of Multiphase Flow, Vol. 28, Issue 9, pp. 1497-151, English

    [Refereed]

    Research paper (scientific journal)

  • Interface Slip on Gas-Liquid Stratified Interface

    HOSOKAWA Shigeo, TOMIYAMA Akio

    Jul. 2002, Transactions of the Japan Society of Mechanical Engineers, B編, 68巻,671号, pp.218-223, Japanese

    [Refereed]

    Research paper (scientific journal)

  • Simulation of Interface Deformation in Shear Flow Using Binary Fluid Lattice Boltzmann Model

    TAKADA Naoki, TOMIYAMA Akio, HOSOKAWA Shigeo

    Jul. 2002, Proc. ASME FED Summer Meeting, 2002, FEDSM2002-31150, English

    [Refereed]

    Research paper (international conference proceedings)

  • Lateral Migration of Single Bubbles due to the Presence of Wall

    HOSOKAWA Shigeo, TOMIYAMA Akio, HAMADA Tomoki, MISAKI Shinji

    Jul. 2002, Proc. ASME FED Summer Meeting, 2002, FEDSM2002-31148, English

    [Refereed]

    Research paper (international conference proceedings)

  • Transverse Migration of Single Bubbles in Simple Shear Flows

    TOMIYAMA Akio, TAMAI Hidesada, Iztok Zun, HOSOKAWA Shigeo

    Jun. 2002, Chemical Engineering Science, Vol. 57, Issue 11, pp. 1849-18, English

    [Refereed]

    Research paper (scientific journal)

  • Terminal Velocity of Single Bubbles in Infinite Stagnant Liquid

    TOMIYAMA Akio, HOSOKAWA Shigeo, YOSHIDA Satoru, Gian Piero Celata

    Oct. 2001, Proc. Conference on Transport Phenomena with Moving Boundaries, English

    [Refereed]

    Research paper (international conference proceedings)

  • 鉛直管内気液二相スラグ流における大気泡長さ、液体スラグ長さ、スラグユニット長さ並びにスラグ周期の推算式

    SAKAGUCHI Tadashi, HAMAGUCHI Hachiro, SHAKUTSUI Hideaki, TOMIYAMA Akio, MINAGAWA Hisato, HOSOKAWA Shigeo

    Sep. 2001, Japanese Journal of Multiphase Flow, Vol.15, No.3, pp.288-295, Japanese

    [Refereed]

    Research paper (scientific journal)

  • Turbulence modification and Reynolds stresses in dispersed two-phase flows in vertical pipes

    HOSOKAWA Shigeo, TOMIYAMA Akio

    Sep. 2001, Proc. U.K.- Japan Seminar on Two-phase Flow, English

    [Refereed]

    Research paper (international conference proceedings)

  • Surface Tension Force Dominant Regime Of Single Bubbles Rising Through Stagnant Liquids

    TOMIYAMA Akio, YOSHIDA Satoru, HOSOKAWA Shigeo

    Sep. 2001, Proc. U.K.- Japan Seminar on Two-phase Flow, English

    [Refereed]

    Research paper (international conference proceedings)

  • Detailed velocity measurement in the vicinity of stratified gas-liquid interface between gas and liquid phases using LDV

    HOSOKAWA Shigeo, ISHIDA Ken, TOMIYAMA Akio

    Aug. 2001, Proc. 3rd International Conference on Measurement Techniques for Multiphase Flows, pp. 158-164, English

    [Refereed]

    Research paper (international conference proceedings)

  • Velocity and Pressure Distributions around Large Bubbles rising through a Vertical Pipe

    TAMAI Hidesada, TOMIYAMA Akio, HOSOKAWA Shigeo

    Jun. 2001, Proc. International Conference on Multiphase Flow 2001, No.493, English

    [Refereed]

    Research paper (international conference proceedings)

  • Turbulence Modification of Gas-Liquid-Solid Three-Phase Bubbly Flow in a Vertical Pipe

    SHAKUTSUI Hideaki, SUYAMA Hiroshi, Ohashi Takakazu, HOSOKAWA Shigeo, TOMIYAMA Akio, SAKAGUCHI Tadashi

    Jun. 2001, Proc. International Conference on Multiphase Flow 2001, No.828, English

    [Refereed]

    Research paper (international conference proceedings)

  • Three-Dimensional Simulation of Bubble Motion by Lattice Boltzmann Method

    TAKADA Naoki, TOMIYAMA Akio, HOSOKAWA Shigeo

    Jun. 2001, Proc. ASME FED Summer Meeting, 2001, FEDSM2001-18179, English

    [Refereed]

    Research paper (international conference proceedings)

  • Terminal velocity of Single Bubbles in Surface Tension Dominant Regime

    TOMIYAMA Akio, Gian Piero Celata, HOSOKAWA Shigeo, YOSHIDA Satoru

    Jun. 2001, Proc. 39th European Two-Phase Flow Group Meeting, English

    [Refereed]

    Research paper (international conference proceedings)

  • Simulation of Two-Phase Fluid Motion by Lattice Boltzmann Method

    TAKADA Naoki, TOMIYAMA Akio, HOSOKAWA Shigeo

    Jun. 2001, Proc. International Conference on Multiphase Flow 2001, No.507, English

    [Refereed]

    Research paper (international conference proceedings)

  • Interface slip on a stratified gas-liquid interface

    HOSOKAWA Shigeo, TOMIYAMA Akio, ISHIDA Ken

    Jun. 2001, Proc. ASME FED Summer Meeting, 2001, FEDSM2001-18185, English

    [Refereed]

    Research paper (international conference proceedings)

  • Influence of electric field on single gas-bubble growth and detachment in microgravity

    Paolo Di Marco, Walter Grassi, HOSOKAWA Shigeo, Gianluca Memoli, TAKAMASA Tomoji, TOMIYAMA Akio

    Jun. 2001, Proc. 39th European Two-Phase Flow Group Meeting, English

    [Refereed]

    Research paper (international conference proceedings)

  • Correlations for Large Bubble Length, Liquid Slug Length, Slug Unit Length and Slug Period of Gas-Liquid Two-Phase Slug Flow in Vertical Pipes

    SAKAGUCHI Tadashi, HAMAGUCHI Hachiro, SHAKUTSUI Hideaki, TOMIYAMA Akio, MINAGAWA Hisato, HOSOKAWA Shigeo

    Jun. 2001, Proc. International Conference on Multiphase Flow 2001, No. 745, English

    [Refereed]

    Research paper (international conference proceedings)

  • Simulation of Bubble Motion under Gravity by Lattice Boltzmann Method

    TAKADA Naoki, MISAWA Masaki, TOMIYAMA Akio, HOSOKAWA Shigeo

    May 2001, Journal of Nuclear Science and Technology, Vol.38, No.5, pp. 330-341, English

    [Refereed]

    Research paper (scientific journal)

  • Terminal Velocities of Single Spherical Particles Falling in a Water-Filled Vertical Pipe

    HOSOKAWA Shigeo, HAMADA Tomoyuki, TOMIYAMA Akio

    Dec. 2000, Transactions of the Japan Society of Mechanical Engineers, B編, 66巻,652号, pp.31-36, Japanese

    [Refereed]

    Research paper (scientific journal)

  • LDV Measurement of Reynolds Stresses in Gas-Liquid Two-Phase Bubbly Flow in a Vertical Pipe

    HOSOKAWA Shigeo, TOMIYAMA Akio, TAKESAKA Kenji, KONDO Yuichi

    Oct. 2000, Proc. 2nd Japan-korea Symposium on Nuclear Thermal Hydraulics and Safety (NTHAS2), pp.247-252, English

    [Refereed]

    Research paper (international conference proceedings)

  • Influence of Frictional Pressure Gradient on Lateral Migration of Single Bubbles

    HAMADA Tomoyuki, HOSOKAWA Shigeo, MATSUI Shinji, TOMIYAMA Akio

    Oct. 2000, Space Forum (International Journal for Space Policy, Science & Technology for Industrial Applications), Vol. 6, pp. 65-74, English

    [Refereed]

    Research paper (scientific journal)

  • Evaluation of Relative Velocity Between Single Bubble and Liquid in horizontal Turbulent Pipe Flow

    HAMADA Tomoyuki, HOSOKAWA Shigeo, TOMIYAMA Akio

    Oct. 2000, Proc. 4th JSME-KSME Thermal Engineering Conference, Vol.2, pp.599-604, English

    [Refereed]

    Research paper (international conference proceedings)

  • Characteristics of liquid Slug Generated at V-Shaped Elbows Between Inclined Pipes

    HOSOKAWA Shigeo, TOMIYAMA Akio, TORII Takeshi, MANABE Ryo

    Sep. 2000, Proc. 2nd European-Japanese Two-Phase Flow Group Meeting, English

    [Refereed]

    Research paper (international conference proceedings)

  • Measurement of Turbulence Structure in Dispersed Two-Phase Flows in a Vertical Pipe

    HOSOKAWA Shigeo, TOMIYAMA Akio

    Jun. 2000, Proc. Japan-US Seminar on Two-Phase Flow Dynamics, English

    [Refereed]

    Research paper (international conference proceedings)

  • Lattice Boltzmann Simulations of Bubble Flow

    TAKADA Naoki, MISAWA Masashi, TOMIYAMA Akio, HOSOKAWA Shigeo

    Jun. 2000, Proc. ASME Fluid Engineering, Summer Meeting, FEDSM11276, English

    [Refereed]

    Research paper (international conference proceedings)

  • Experimental Observation of Coalescence between Planar Bubbles

    HOSOKAWA Shigeo, TAKANO Masashi, TOMIYAMA Akio

    Jun. 2000, Proc. ASME Fluid Engineering, Summer Meeting, FEDSM11274, English

    [Refereed]

    Research paper (international conference proceedings)

  • Turbulence Modification in Dispersed Two-phase flow in a Vertical Pipe

    HOSOKAWA Shigeo, TOMIYAMA Akio

    Oct. 1999, Proc. Asian Symposium on Multiphase Flow, pp.63-68, English

    [Refereed]

    Research paper (international conference proceedings)

  • Terminal Velocities of Single Spherical Particles Falling in a Water-Filled Vertical Pipe

    HOSOKAWA Shigeo, TOMIYAMA Akio, HAMADA Tomoyuki

    May 1999, Proc. Two-Phase Flow Modelling & Experimentation, Vol.2, pp.845-850, English

    [Refereed]

    Research paper (international conference proceedings)

  • Spatial Evolution of Developing Air-Water Bubble Flow in a Vertical Pipe

    TOMIYAMA Akio, TAMAI Hidesada, SHIMOMURA Hiroshi, HOSOKAWA Shigeo

    May 1999, Proc. Two-Phase Flow Modelling & Experimentation, Vol.2, pp.1027-1034, English

    [Refereed]

    Research paper (international conference proceedings)

  • Measurement of Transverse Migration of Single Bubbles in a Couette Flow

    TOMIYAMA Akio, Iztok Zun, TAMAI Hidesada, HOSOKAWA Shigeo, Okuda Takeo

    May 1999, Proc. Two-Phase Flow Modelling & Experimentation, Vol.2, pp.941-948, English

    [Refereed]

    Research paper (international conference proceedings)

  • Turbulence Modification Due to Bubbles and Particles in Dispersed Two-Phase Upflow in a Vertical Pipe

    HOSOKAWA Shigeo, TOMIYAMA Akio

    Apr. 1999, Proc. 7th Int. Conf. on Nuclear Engineering, ICONE-7242, English

    [Refereed]

    Research paper (international conference proceedings)

  • Onset of Slugging of a residual stagnant liquid at a V-shaped portion of a pipeline

    MANABE Ryo, TOMIYAMA Akio, HOSOKAWA Shigeo, TORII Takeshi, HASEGAWA Masanobu

    Feb. 1999, Proc. of elce’99 (ASME 75th Anniversary conference, Energy Sources Technology Conference and Exhibition), English

    [Refereed]

    Research paper (international conference proceedings)

  • Influence of Frictional Pressure Gradient on Lateral Migration of Single Bubbles

    HAMADA Tomoyuki, HOSOKAWA Shigeo, TOMIYAMA Akio, MATSUI Shinji, SAKAGUCHI Tadashi

    Oct. 1998, Proc. Drop Tower Days in Hokkaido, pp. 40-42, English

    [Refereed]

    Research paper (international conference proceedings)

  • Turbulence Modification due to the Third Phase to Gas-Liquid and Liquid-Solid Two-Phase Flow

    SHAKUTSUI Hideaki, TOMIYAMA Akio, HOSOKAWA Shigeo, SAKAGUCHI Tadashi

    Jun. 1998, Proc. 3rd Int. Conf. on Multiphase Flow, English

    [Refereed]

    Research paper (international conference proceedings)

  • Influences of Relative Velocity on Turbulent Intensity in Gas-Solid Two-Phase Flow in a Vertical Pipe

    HOSOKAWA Shigeo, TOMIYAMA Akio, MORIMURA Masaru, FUJIWARA Shinya, SAKAGUCHI Tadashi

    Jun. 1998, Proc. 3rd Int. Conf. on Multiphase Flow, English

    [Refereed]

    Research paper (international conference proceedings)

  • Unintrusive Measurement of Phase Density Function and Velocity

    HOSOKAWA Shigeo, TOMIYAMA Akio, TAKESAKA Kenji, SAKAGUCHI Tadashi

    May 1998, Proc. European-Japanese Two-Phase Flow Group Meeting, English

    [Refereed]

    Research paper (international conference proceedings)

  • Three Dimensional Distribution of Liquid Velocity of Gas-Liquid Two-Phase Slug Flow in Horizontal Pipes

    HOSOKAWA Shigeo, SAKAGUCHI Tadashi, TOMIYAMA Akio, HAMADA Kazuaki, MANABE Ryo

    Sep. 1997, Proc. 2nd Japanese-GermanSymp. on Multi-Phase Flow, pp. 97-106, English

    [Refereed]

    Research paper (international conference proceedings)

  • Measurement of Flow Field Around a Solid Particle Using Photochromic Dye

    HOSOKAWA Shigeo, TOMIYAMA Akio, MIZUSHIMA Seijiro, SAKAGUCHI Tadashi

    Jun. 1997, Experimental Heat Transfer, Fluid Mechanics and Thermodynamics 1997, Vol. 1, pp. 51-58, English

    [Refereed]

    Research paper (international conference proceedings)

  • Lateral Migration of Single Bubbles in a Laminar Duct Flow under Normal and Micro Gravity Conditions

    SAKAGUCHI Tadashi, TOMIYAMA Akio, Iztok Zun, HOSOKAWA Shigeo

    Jun. 1997, Experimental Heat Transfer, Fluid Mechanics and Thermodynamics 1998, English

    [Refereed]

    Research paper (international conference proceedings)

  • 狭平行平板内静止液中単一空気泡の終端速度と抗力係数

    TOMIYAMA Akio, HOSOKAWA Shigeo, EBARA Masahiko, MIYAMAGA Yoshiharu, KAWAKUBO Yoshio, KINOTO Hiroshi

    Jun. 1996, 混相流, 第10巻第2号, pp. 146 - 154, Japanese

    [Refereed]

    Research paper (scientific journal)

MISC

  • 時空間フィルタ流速計による界面近傍の流れの計測

    HOSOKAWA SHIGEO, TOMIYAMA AKIO

    Oct. 2017, ながれ, 36 (5), 303 - 308, Japanese

    [Refereed][Invited]

    Introduction and explanation (scientific journal)

  • 時空間フィルタ流速計による単一液滴に作用する界面せん断応力の評価

    HOSOKAWA SHIGEO, KITAHATA KYOSUKE, HAYASHI KOSUKE, TOMIYAMA AKIO

    Dec. 2014, ながれ, 33 (6), 509 - 512, Japanese

    [Refereed][Invited]

    Prompt report, short report, and research note, etc. (scientific journal)

  • フォトブリーチング分子タグ法による乱れエネルギ収支の評価

    HOSOKAWA SHIGEO, TOMIYAMA AKIO

    Dec. 2013, 日本機械学会流体工学部門「今この論文が熱い!」, Japanese

    [Invited]

    Introduction and explanation (others)

  • 三次元One-Way気泡追跡法に基づく未発達気泡・スラグ流の予測(第1報:モデル及び計算例)

    玉井 秀定, 冨山 明男

    2004, 日本機械学会論文集(B編), 70-692,880-887, Japanese

    [Refereed]

    Other article

  • The Wake Effect on the Rising Velocity of Small Bubbles

    Gian Piero Celata, Maurizio Cumo, Francesco D' Annibale, Tomiyama Akio

    2004, 42nd European Two-Phase Flow Group Meeting,Jenova,Italy, 1-10, English

    [Refereed]

    Other article

  • The Wake Effect on Bubble Rising Velocity in One-Component Systems

    Gian Piero Celata, Maurizio Cumo, Francesco D'Annibale, TOMIYAMA Akio

    2004, Int.J.Multiphase Flow, 30,939-961, English

    [Refereed]

    Other article

  • Effect of Gas Injection Mode and Purity of Liquid on Bubble Rising in Two-Component Systems

    Gian Piero Celata, Maurizio Cumo, Francesco D' Annibale, Paolo Di Marco, Tomiyama Akio, Chiara Zovini

    2004, 42nd European Two-Phase Flow Group Meeting,Jenova,Italy, 1-15, English

    [Refereed]

    Other article

  • Drag, Lift and Virtual Mass Forces acting on a Single Bubble

    Tomiyama Akio

    2004, 3rd Int.Symp.on Two-Phase Flow Modelling and Experimentation(CD-ROM),Pisa,Italy, 1-10, English

    [Refereed]

    Other article

  • Bubble Rising Velocity in One and Two-Component Systems

    Gian Piero Celata, Francesco D' Annibale, Paolo Di Marco, Water Grassi, Gianlucca Memori, Tomiyama Akio

    2004, 42nd European Two-Phase Flow Group Meeting,Jenova,Italy, English

    [Refereed]

    Other article

  • A Simple Method for Evaluating Fluctuating Bubble velicity and its Application to a Hybrid Bubble Tracking Method

    Tomiyama Akio, SAKODA Kenichi, Gian Piero Celata, Iztok Zun

    2004, 3rd Int.Symp.on Two-Phase Flow Modelling and Experimentation(CD-ROM),Pisa,Italy, 1-10, English

    [Refereed]

    Other article

Books etc

  • 微細気泡の最新技術 Vol.2

    HOSOKAWA SHIGEO, TOMIYAMA AKIO

    Other, エヌ・ティー・エス, Aug. 2014, Japanese, ISBN: 9784860434076

    Scholarly Book

  • Handbook of Gas-Liquid Two-Phase Flow Technology 2nd Ed.

    TOMIYAMA Akio

    Joint Work, CORONA Publishing Co., Ltd., Jun. 2006, Japanese

    Scholarly Book

  • 数値流体力学ハンドブック

    小林 敏雄, 松本 洋一郎, 冨山 明男

    Joint Work, 丸善, 2003, Japanese

    Scholarly Book

  • 混相流計測法/日本原子力学会編

    小泉 安郎, 冨山 明男, その他共著者

    Joint Work, 森北出版, 2003, Japanese

    Scholarly Book

Presentations

  • Three-Dimensional Flow Characteristics around a Bulge Structure in a Cavity Swept by a Viscoelastic Fluids

    SUZUKI Hiroshi, KAWATA Masaki, HIDEMA Ruri, HOSOKAWA Shigeo, HAYASHI Kosuke, TOMIYAMA Akio

    Annual European Rheology Conference 2019 (AERC 2019), Apr. 2019, English, Portorož, Slovenia

    Oral presentation(general)

  • 単一液滴に作用する力の実験的分析

    SHIGEKANE GAKU, HOSOKAWA SHIGEO, HAYASHI KOSUKE, TOMIYAMA AKIO

    第95期日本機械学会流体工学部門講演会, Nov. 2018, Japanese, 日本機械学会, Muroran

    Poster presentation

  • 可溶性界面活性剤により汚染された球形液滴の数値シミュレーション

    HAYASHI KOSUKE, SAKAI KOHEI, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    日本流体力学会年会2018, Sep. 2018, Japanese, 大阪大学

    Oral presentation(general)

  • 上端シャープエッジ鉛直管における気液二相対向流の界面及び壁面摩擦係数

    SHIMAMURA TAKEYUKI, GODA RAITO, HAYASHI KOSUKE, HOSOKAWA SHIGEO, MURASE MICHIO, NISHIDA KOJI, TOMIYAMA AKIO

    混相流シンポジウム2018, Aug. 2018, Japanese, 仙台

    Oral presentation(general)

  • 鉛直円管内単一二酸化炭素気泡の物質移動に及ぼすアルコールと電解質の相互作用の影響

    HIROTA YUTAKA, HORI YOHEI, HAYASHI KOSUKE, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    混相流シンポジウム2018, Aug. 2018, Japanese, 仙台

    Oral presentation(general)

  • Generation of micro-bubbles by means of subcooled boiling

    HOSOKAWA SHIGEO, YOSHIDA MASATAKA, TOMIYAMA AKIO, MAEDA YASUNARI, AKITA TOMOHIRO

    混相流シンポジウム2018, Aug. 2018, Japanese, 日本混相流学会, Sendai

    Oral presentation(general)

  • U字管内気液二相流の圧力損失に及ぼす液相粘度の影響

    HAYASHI KOSUKE, SUZUKI DAIKI, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    混相流シンポジウム2018, Aug. 2018, Japanese, 仙台

    Oral presentation(general)

  • Effect of Micro-Bubbles on Heat Transfer During Quenching of High Temperature Sphere

    HOSOKAWA SHIGEO, FUKUDA RYU, TOMIYAMA AKIO, TOSHIMA MASATAKE

    第23回動力・エネルギー技術シンポジウム, Jun. 2018, Japanese, 日本機械学会動力エネルギーシステム部門, Ube

    Oral presentation(general)

  • Generation method of micro-bubbles by means of cyclic heating

    YOSHIDA MASATAKA, HOSOKAWA SHIGEO, TOMIYAMA AKIO, MAEDA YASUNARI

    混相流シンポジウム2017, Aug. 2017, Japanese, 日本混相流学会, Tokyo

    Oral presentation(general)

  • 気泡による微細粒子輸送に関する研究

    KANG JYUNGYU, HAYASHI KOSUKE, TOMIYAMA AKIO, TAGUCHI KENJI, TSUKAGUCHI YUICHI

    混相流シンポジウム2017, Aug. 2017, Japanese, 東京

    Oral presentation(general)

  • 鉛直円管内旋回気液二相流の圧力損失に関する研究

    FUNAHASHI HAYATO, KINOSHITA HIROHITO, HAYASHI KOSUKE, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    混相流シンポジウム2017, Aug. 2017, Japanese, 東京

    Oral presentation(general)

  • U字管内気液二相流の圧力損失に関する研究

    SUZUKI DAIKI, HAYASHI KOSUKE, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    混相流シンポジウム2017, Aug. 2017, Japanese, 東京

    Oral presentation(general)

  • 二相流数値計算検証のための実験計測

    HOSOKAWA SHIGEO, HAYASHI KOSUKE, TOMIYAMA AKIO

    日本機械学会研究分科会RC270第3回分科会, Dec. 2016, Japanese, 日本機械学会, Tokyo

    Symposium workshop panel(nominated)

  • 時空間フィルタ流速計による界面活性剤の吸着を伴う液滴の測定

    HOSOKAWA SHIGEO, MASUKURA YUYA, HAYASHI KOSUKE, TOMIYAMA AKIO

    第94期日本機械学会流体工学部門講演会, Nov. 2016, Japanese

    Oral presentation(general)

  • Turbulence Kinetic Energy Budget in Bubbly Upflow in a Vertical Duct

    IWAI RYOSUKE, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    日本流体力学会年会2016, Sep. 2016, Japanese, 日本流体力学会, Nagoya

    Oral presentation(general)

  • 塔径及び初期液位が気泡塔内平均ボイド率に及ぼす影響

    内田 賢吾, 橋田 昌明, 佐々木 翔平, HAYASHI KOSUKE, TOMIYAMA AKIO

    混相流シンポジウム2016, Aug. 2016, Japanese

    Oral presentation(general)

  • 静止液中単一気泡の形状に及ぼす界面活性剤の影響に関する研究

    竹川 稔彦, 青山 昌平, HAYASHI KOSUKE, TOMIYAMA AKIO

    混相流シンポジウム2016, Aug. 2016, Japanese

    Oral presentation(general)

  • Shapes of single bubbles in infinite stagnant liquids contaminated with surfactant

    TAKEGAWA TOSHIHIKO, AOYAMA SHOHEI, HAYASHI KOSUKE, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    混相流シンポジウム2016, Aug. 2016, Japanese

    Oral presentation(general)

  • 鉛直円管内電解質水溶液中単一二酸化炭素気泡の物質移動に関する研究

    堀 陽平, 青木 二郎, HAYASHI KOSUKE, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    混相流シンポジウム2016, Aug. 2016, Japanese

    Oral presentation(general)

  • U字管内気液二相流の圧力損失に関する研究

    宮地 祥人, HAYASHI KOSUKE, HOSOKAWA SHIGEO, TOMIYAMA AKIO, 舘山 将也, 廣津 誠, 竹田 信宏

    混相流シンポジウム2016, Aug. 2016, Japanese

    Oral presentation(general)

  • 散気管内外の流れに散気孔の周方向角度が及ぼす影響

    SATO RYO, MIYAYOSHI TATSUYA, HAYASHI KOSUKE, TOMIYAMA AKIO

    日本機械学会関西支部第91期定時総会講演会, pp. 129-132, Mar. 2016, Japanese, 大阪

    Oral presentation(general)

  • 埋め込み境界-熱流動格子ボルツマン法における熱流束境界条件の精度に及ぼす二緩和時間衝突則の影響

    SETA TAKESHI, HAYASHI KOSUKE, TOMIYAMA AKIO

    第29回数値流体力学シンポジウム, Dec. 2015, Japanese, 九州大学筑紫キャンパス

    Oral presentation(general)

  • Reduction of the Temperature Jump in the Immersed Boundary-Thermal Lattice Boltzmann Method

    SETA TAKESHI, HAYASHI KOSUKE, TOMIYAMA AKIO

    American Physical Society 68th Annual DFD Meeting, Nov. 2015, English, Boston,Massachusetts, U.S.A.

    Oral presentation(general)

  • Turbulence Properties of Bubbly Flow in a 2x2 Rod Bundle

    HOSOKAWA SHIGEO, TSUDA MITSUHIKO, OGAWA YUMA, TOMIYAMA AKIO

    第93期日本機械学会流体工学部門講演会, Nov. 2015, Japanese, 日本機械学会流体工学部門, Tokyo

    Oral presentation(general)

  • Spatiotemporal Filter Velocimetry and Its Applications

    HOSOKAWA SHIGEO, TOMIYAMA AKIO

    日本機械学会2015年度年次大会, Sep. 2015, Japanese, 日本機械学会, Sapporo

    [Invited]

    Symposium workshop panel(nominated)

  • 境界適合型時空間フィルタ流速計と界面活性剤濃度評価の試み

    HOSOKAWA SHIGEO, HAYASHI KOSUKE, TOMIYAMA AKIO

    日本機械学会研究分科会RC263第6回分科会, Sep. 2015, Japanese, 日本機械学会, Tokyo

    Symposium workshop panel(nominated)

  • Study on adsorption of surfactant at interface of a spherical drop

    MASUKURA YUYA, HOSOKAWA SHIGEO, HAYASHI KOSUKE, TOMIYAMA AKIO

    日本流体力学会年会2015, Sep. 2015, Japanese, 日本流体力学会, Tokyo

    Oral presentation(general)

  • 二緩和時間衝突則に基づく埋め込み境界法を適用した熱流動格子ボルツマン法

    SETA TAKESHI, HAYASHI KOSUKE, TOMIYAMA AKIO

    混相流シンポジウム2015, Aug. 2015, Japanese, 高知工科大学

    Oral presentation(general)

  • Evaluation of Marangoni Stress Acting on a Single Contaminated Spherical Drop

    MASUKURA YUYA, HOSOKAWA SHIGEO, HAYASHI KOSUKE, TOMIYAMA AKIO

    混相流シンポジウム2015, Aug. 2015, Japanese, Kochi

    Oral presentation(general)

  • 一様せん断流中単一気泡に働く揚力に関する研究

    AOYAMA SHOHEI, TAKEGAWA TOSHIHIKO, HAYASHI KOSUKE, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    混相流シンポジウム2015, Aug. 2015, Japanese, 高知

    Oral presentation(general)

  • サブクール水中における蒸気凝縮音に関する研究

    IKEUCHI KAZUTAKA, TATEYAMA MASAYA, HAYASHI KOSUKE, HOSOKAWA SHIGEO, TOMIYAMA AKIO, HIROTSU MAKOTO, TAKEDA NOBUHIRO

    混相流シンポジウム2015, Aug. 2015, Japanese, 高知

    Oral presentation(general)

  • Effects of liquid-separation components on two-phase swirling flow in a steam separator

    KATONO KENICHI, FUNAHASHI HAYATO, HOSOKAWA SHIGEO, HAYASHI KOSUKE, TOMIYAMA AKIO

    第20回動力・エネルギー技術シンポジウム, Jun. 2015, Japanese, 日本機械学会動力エネルギーシステム部門, Sendai

    Oral presentation(general)

  • Turbulence Characteristics of Gas-Liquid Two-Phase Bubbly Flow in a 2x2 Rod Bundle

    TSUDA MITSUHIKO, OGAWA YUMA, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    第21回動力・エネルギー技術シンポジウム, Jun. 2015, Japanese, 日本機械学会動力エネルギーシステム部門, Yokohama

    Oral presentation(general)

  • Velocity distribution of gas-liquid two-phase bubble flow in a 2x2 rod bundle

    TSUDA MITSUHIKO, OGAWA YUMA, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    第20回動力・エネルギー技術シンポジウム, Jun. 2015, Japanese, 日本機械学会動力エネルギーシステム部門, Sendai

    Oral presentation(general)

  • 冷却材喪失事故時の格納容器内温度シミュレーションモデルの検証;(2)空気及び蒸気吹込み実験

    野末 貴大, 藤井 雄基, HAYASHI KOSUKE, 細川 茂雄, 冨山 明男, 歌野原 陽一, 山本 泰功, 村瀬 道雄

    日本原子力学会 春の大会 2015, Mar. 2015, Japanese, 茨城

    Oral presentation(general)

  • Reduction of the velocity slips by the immersed boundary-lattice Boltzmann method

    SETA TAKESHI, ROJAS ROBERT, HAYASHI KOSUKE, TOMIYAMA AKIO

    日本機械学会流体工学部門講演会, Oct. 2014, Japanese, 富山

    Oral presentation(general)

  • 鉛直ダクト内気泡流における乱れエネルギ収支計測

    KARASAWA HIROKI, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    第92期流体工学部門講演会, Oct. 2014, Japanese, 日本機械学会, 富山県富山市

    Oral presentation(general)

  • 時空間フィルタ流速計による単一液滴に作用する界面せん断応力の評価

    HOSOKAWA SHIGEO, KITAHATA KYOSUKE, HAYASHI Kosuke, TOMIYAMA AKIO

    日本流体力学会年会2014, Sep. 2014, Japanese, 日本流体力学会, 宮城県仙台市

    Oral presentation(general)

  • 時空間フィルタ流速計による界面近傍速度測定

    HOSOKAWA SHIGEO, KITAHATA KYOSUKE, HAYASHI Kosuke, TOMIYAMA AKIO

    理論応用力学講演会, Sep. 2014, Japanese, 日本学術会議, 東京都

    Oral presentation(general)

  • 非一様電場におけるオリフィスからの気泡成長

    KURIMOTO RYO, DI MARCO PAOLO, MINAGAWA HISATO, HAYASHI KOSUKE, TOMIYAMA AKIO

    混相流シンポジウム2014, E151, USB Memory (2 pages), Jul. 2014, Japanese, 札幌

    Oral presentation(general)

  • 固体壁に付着した液滴に及ぼす界面活性剤の影響に関する研究

    KITANO MASAAKI, ABHINAV DHAR, HAYASHI KOSUKE, TOMIYAMA AKIO

    混相流シンポジウム2014, A311, USB Memory (2 pages), Jul. 2014, Japanese, 札幌

    Oral presentation(general)

  • 加圧溶解型微細気泡発生法におけるサブミクロン気泡の発生

    BABA YUJI, HOSOKAWA SHIGEO, TOMIYAMA AKIO, ITO Yoshihiro, MAEDA Yasunari

    混相流シンポジウム2014, Jul. 2014, Japanese, 日本混相流学会, Sapporo

    Oral presentation(general)

  • 汚れ系における気泡の界面追跡計算と物質移動

    HAYASHI KOSUKE, TOMIYAMA AKIO

    混相流シンポジウム2014, B331, USB Memory (2 pages), Jul. 2014, Japanese, 札幌

    Oral presentation(keynote)

  • スラリー気泡塔内平均ボイド率に及ぼす初期液位の影響

    SASAKI SHOHEI, OJIMA SHIMPEI, HAYASHI KOSUKE, TOMIYAMA AKIO

    混相流シンポジウム2014, A311, USB Memory (2 pages), Jul. 2014, Japanese

    Oral presentation(general)

  • スラリー気泡塔における気泡合体に粒子径が及ぼす影響

    OJIMA SHIMPEI, SASAKI SHOHEI, HAYASHI KOSUKE, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    混相流シンポジウム2014, B232, USB Memory (2 pages), Jul. 2014, Japanese, 札幌

    Oral presentation(general)

  • U字ベンドにおける空気水系気液二相流の圧力損失に関する研究

    KOBAYASHI SHINGO, HAYASHI KOSUKE, HOSOKAWA SHIGEO, TOMIYAMA AKIO, 廣津 誠, 舘山 将也, 竹田 信宏

    混相流シンポジウム2014, B223, USB Memory (2 pages), Jul. 2014, Japanese, 札幌

    Oral presentation(general)

  • 2x2ロッドバンドル内気液二相流の液相速度測定

    OGAWA YUMA, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    The 19th National Symposium on Power and Energy Systems (SPES2014), Jun. 2014, Japanese, 日本機械学会, Fukio

    Oral presentation(general)

  • 散気管内外の流れに及ぼす液相粘度の影響

    SAMPEI TOMOYUKI, HAYASHI KOSUKE, HOSOKAWA SHIGEO, TOMIYAMA AKIO, HLWAN MOE ZAW

    日本機械学会関西支部定時総会・講演会2014, Mar. 2014, Japanese, 大阪府立大学

    Oral presentation(general)

  • 一様せん断流中単一気泡に働く揚力に関する研究 (第2 報 数値計算)

    HAMADA TAKESHI, MATSUNAGA AKIRA, HAYASHI KOSUKE, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    日本機械学会関西支部定時総会・講演会2014, Mar. 2014, Japanese, 大阪府立大学

    Oral presentation(general)

  • 一様せん断流中単一気泡に働く揚力に関する研究(第 1 報 実験)

    MATSUNAGA Akira, HAMADA Takeshi, HOSOKAWA SHIGEO, HAYASHI Kosuke, TOMIYAMA AKIO

    日本機械学会 関西支部第89期定時総会講演会, Mar. 2014, Japanese, 日本機械学会関西支部, 大阪

    Oral presentation(general)

  • リフラックス冷却における蒸気発生器U字管での熱流体挙動(7)逆U字管での凝縮実験

    NOZUE Takahiro, FUJII YUKI, DOI TAIGA, HOSOKAWA SHIGEO, TOMIYAMA AKIO, KUSUNOKI Kiyoshi, MURASE MICHIO

    日本原子力学会2014年春の大会, Mar. 2014, Japanese, 日本原子力学会, 東京

    Oral presentation(general)

  • 流速測定における新しいアプローチ—Imaging Spatial Filter Velocimetry (iSFV)—

    HOSOKAWA SHIGEO, TOMIYAMA Akio

    関西伝熱セミナー, Sep. 2013, Japanese, 神戸

    [Invited]

    Oral presentation(invited, special)

  • 空間フィルタ流速計による単一液滴内外速度の測定

    KITAHATA KYOSUKE, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    日本流体力学会年会2013, Sep. 2013, Japanese, 日本流体力学会, 東京

    Oral presentation(general)

  • 気水分離器内旋回二相流に関する研究 (2) ピックオフリングの改良

    TAMAU Hayato, MIKA Takeshi, HOSOKAWA SHIGEO, TOMIYAMA Akio

    日本原子力学会2013年秋の大会, Sep. 2013, Japanese, 日本原子力学会, 八戸

    Oral presentation(general)

  • 気水分離器内旋回二相流に関する研究 (1) 流動と分離特性

    MIKA Takeshi, TAMAU Hayato, HOSOKAWA SHIGEO, TOMIYAMA Akio

    日本原子力学会2013年秋の大会, Sep. 2013, Japanese, 日本原子力学会, 八戸

    Oral presentation(general)

  • リフラックス冷却における蒸気発生器U字管での熱流体挙動(4)下端CCFL蒸気・水実験

    FUJII Yuki, DOI Taiga, HOSOKAWA SHIGEO, TOMIYAMA Akio, KAWASAKI Ikuo, MURASE Michio

    日本原子力学会2013年秋の大会, Sep. 2013, Japanese, 日本原子力学会, 八戸

    Oral presentation(general)

  • 散気管内外の流れに液相粘性が及ぼす影響に関する研究

    HAYASHI Kosuke, SAMPEI Tomoyuki, TOMIYAMA Akio, FURUNO Shinsuke, KIRA Fumihiro

    混相流シンポジウム2013, Aug. 2013, Japanese, 日本混相流学会, 長野

    Oral presentation(general)

  • 気泡塔内ボイド率・液相速度分布の計測と数値予測

    OJIMA Shinpei, MIKIHARA Ikumi, HOSOKAWA SHIGEO, TOMIYAMA Akio

    混相流シンポジウム2013, Aug. 2013, Japanese, 日本混相流学会, 長野

    Oral presentation(general)

  • 加圧溶解法により生成した微細気泡の経時変化

    FUJIMOTO Shudai, ISHI Kazuya, HOSOKAWA SHIGEO, TOMIYAMA Akio, ITO Yoshihiro, MAEDA Yasunari

    混相流シンポジウム2013, Aug. 2013, Japanese, 日本混相流学会, 長野

    Oral presentation(general)

  • 鉛直円管内CO2気泡周りの濃度分布計測

    HOSODA Shogo, AOKI Jiro, HAYASHI Kosuke, HOSOKAWA Shigeo, TOMIYAMA Akio

    混相流シンポジウム2013, Aug. 2013, Japanese, 日本混相流学会, 長野

    Oral presentation(general)

  • 分子タグ法と空間フィルタ流速計の融合による気泡流の速度計測

    HOSOKAWA SHIGEO, IKEDA Satoshi, TOMIYAMA AKIO

    第62回理論応用力学講演会, Mar. 2013, Japanese, 日本学術会議, 東京

    Oral presentation(general)

  • 粘性力及び表面張力の評価法が界面運動の数値予測に及ぼす影響

    HAYASHI KOSUKE, TOMIYAMA AKIO

    第62回理論応用力学講演会, Mar. 2013, Japanese, 東京工業大学

    Oral presentation(general)

  • 空間フィルタ流速計による液滴速度の測定

    KITAHATA KYOSUKE, MATSUMOTO TAKAAKI, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    日本機械学会 関西支部第88期定時総会講演会, Mar. 2013, Japanese, 日本機械学会関西支部, 大阪

    Oral presentation(general)

  • リフラックス冷却における蒸気発生器U字管での熱流体挙動(2) 鉛直管下端における気液対向流制限に関する研究

    FUJII YUKI, DOI TAIGA, HOSOKAWA SHIGEO, TOMIYAMA AKIO, KAWASAKI IKUO, MURASE MICHIO

    日本原子力学会2013年春の大会, Mar. 2013, Japanese, 日本原子力学会, 大阪

    Oral presentation(general)

  • V字管内のスラッギング現象に関する研究

    IRIKURA MOTOKI, MAEKAWA MUNENORI, HOSOKAWA SHIGEO, TOMIYAMA AKIO

    化学工学会第78年会, Mar. 2013, Japanese, 化学工学会, 大阪

    Oral presentation(general)

  • 空間フィルタ流速計による3D3C速度計測

    HOSOKAWA SHIGEO, TOMIYAMA AKIO

    日本機械学会研究分科会RC254第3回分科会, Dec. 2012, Japanese, 日本機械学会, Kobe

    Oral presentation(general)

  • Effects of Shape Oscillation and Surfactant on Mass Transfer from Wobbling and Taylor Bubbles (Invited Lecture)

    TOMIYAMA Akio

    DFG Workshop on Transport Processes at Fluidic Interface, Oct. 2012, English, Frankfurt,Germany

    [Invited]

    Oral presentation(invited, special)

  • Effects of surfactant on the lift force acting on bubbles in linear shear flows

    HAYASHI, Kosuke, MATSUNAGA, Akira, HAMADA, Takeshi, TOMIYAMA, Akio

    JSMF Annual Meeting 2012, Aug. 2012, Japanese, 日本混相流学会, Kashiwa

    Oral presentation(general)

  • Reduction of boundary slip from the immersed boundary-lattice Boltzmann method by two-relaxation-time

    SETA, Takeshi, ROJAS, Roberto, HAYASHI, Kosuke, TOMIYAMA, Akio

    JSMF Annual Meeting 2012, Aug. 2012, Japanese, 日本混相流学会, Kashiwa

    Oral presentation(general)

  • Immersed Boundary-Finite Difference Lattice Boltzmann Method Using Two Relaxation Times

    ROJAS, Roberto, SETA, Takeshi, HAYASHI, Kosuke, TOMIYAMA, Akio

    JSMF Annual Meeting 2012, Aug. 2012, Japanese, 日本混相流学会, Kashiwa

    Oral presentation(general)

  • Study on Two-Phase Swirling Flow in a Gas-Liquid Separator

    MIKA Takeshi, MATSUBAYASHI Toshiki, HOSOKAWA Shigeo, TOMIYAMA Akio

    The 17th National Symposium on Power and Energy Systems (SPES 2012), Jun. 2012, Japanese, 日本機械学会動力・エネルギー部門, Fukuoka

    Oral presentation(general)

  • Turbulent liquid flow in a rod bundle

    KOGA Syunichi, YAMAMOTO Taishi, HOSOKAWA Shigeo, TOMIYAMA Akio

    The 17th National Symposium on Power and Energy Systems (SPES 2012), Jun. 2012, Japanese, 日本機械学会動力・エネルギー部門, Fukuoka

    Oral presentation(general)

  • Study on bubbly flow in a four by four rod bundle

    HOSOKAWA Shigeo, MURAMATSU Yuya, TADA Ryo, HAYASHI Kosuke, TOMIYAMA Akio

    The 17th National Symposium on Power and Energy Systems (SPES 2012), Jun. 2012, Japanese, 日本機械学会動力・エネルギー部門, Fukuoka

    Oral presentation(general)

  • 小型挿入型光ファイバLDVの開発

    UCHIDA Takuma, HOSOKAWA Shigeo, TOMIYAMA Akio

    日本機械学会関西支部第87期定時総会講演会, Mar. 2012, Japanese, 日本機械学会, Osaka

    Oral presentation(general)

  • 分子タグ法と空間フィルタ流速計による速度場の詳細測定

    HOSOKAWA Shigeo, TOMIYAMA Akio

    JAXA第7回学際領域における分子イメージングフォーラム, Nov. 2011, Japanese, JAXA, Tokyo

    Oral presentation(invited, special)

  • ボアスコープを用いた空間フィルタ流速計による流速測定

    HOSOKAWA Shigeo, MATSUMOTO Takaaki, TOMIYAMA Akio, TAKEMORI Toshikazu

    日本機械学会熱工学コンファレンス2011, Oct. 2011, Japanese, 日本機械学会, Hamamatsu

    Oral presentation(general)

  • 鉛直矩形ダクト内気泡乱流における乱れエネルギ収支

    HOSOKAWA Shigeo, MIZUMOTO Hiroki, TOMIYAMA Akio

    日本流体力学会年会2011, Sep. 2011, Japanese, 日本流体力学会, Tokyo

    Oral presentation(general)

  • Basic study of flow inside a diffuser for membrane bioreactor

    KIRA Fumihiro, KAWAGISHI Tomiki, FURUNO Shinsuke, SAMPEI Tomoyuki, HAYASHI Kosuke, TOMIYAMA Akio

    JSMF Annual Meeting 2011, Aug. 2011, Japanese, 京都

    Oral presentation(general)

  • Dissolution process of a high Schmidt and low Reynolds numbers

    HOSODA Shogo, HAYASHI Kosuke, TOMIYAMA Akio

    JSMF Annual Meeting 2011, Aug. 2011, Japanese, 京都

    Oral presentation(general)

  • 空間フィルタ流速計による気泡速度の測定

    HOSOKAWA Shigeo, SATO Hiroyasu, MATSUMOTO Takaaki, HAYASHI Kosuke, TOMIYAMA Akio

    JSMF Annual Meeting 2011, Aug. 2011, Japanese, 日本混相流学会, Kyoto

    Oral presentation(general)

  • Interface tracking simulation of bubbles with adsorption and desorption of soluble surfactant

    HAYASHI Kosuke, KURIMOTO Ryo, TOMIYAMA Akio

    JSMF Annual Meeting 2011, Aug. 2011, Japanese, 日本混相流学会, 京都

    Oral presentation(general)

  • 加圧溶解法で生成したマイクロバブルの気泡径分布

    MAEDA Yasunari, TAYA Chihiro, HOSOKAWA Shigeo, TOMIYAMA Akio, ITO Yoshihiro, SHIBATA Naoki

    JSMF Annual Meeting 2011, Aug. 2011, Japanese, 日本混相流学会, Kyoto

    Oral presentation(general)

  • Effects of particle size and concentration on bubble coalescence in slurry bubble column

    OJIMA Shinpei, OBATA Satoshi, HAYASHI Kosuke, TOMIYAMA Akio

    JSMF Annual Meeting 2011, Aug. 2011, Japanese, 京都

    Oral presentation(general)

  • Countercurrent flow limitation at the upper end of PWR pressurizer surge line

    YANAGI Chihiro, FUTATSUGI Takashi, HAYASHI Kosuke, TOMIYAMA Akio, KINOSHITA Ikuo, MURASE Michio

    JSMF Annual Meeting 2011, Aug. 2011, Japanese, 京都

    Oral presentation(general)

  • Countercurrent gas-liquid flow in a PWR hot leg (2) (VOF calculations for 1/15-scale tests)

    MURASE Michio, KINOSHITA Ikuo, YANAGI Chihiro, UTANOHARA Yoichi, TAKATA Takashi, YAMAGUCHI Akira, TOMIYAMA Akio

    JSMF Annual Meeting 2011, Aug. 2011, Japanese, 京都

    Oral presentation(general)

  • Countercurrent gas-liquid flow in a PWR hot leg (2) (VOF calculations for full-scale conditions)

    UTANOHARA Yoichi, MURASE Michio, KINOSHITA Ikuo, YANAGI Chihiro, TAKATA Takashi, YAMAGUCHI Akira, TOMIYAMA Akio

    JSMF Annual Meeting 2011, Aug. 2011, Japanese, 京都

    Oral presentation(general)

  • Countercurrent gas-liquid flow in a PWR hot leg (1)

    KINOSHITA Ikuo, MURASE Michio, UTANOHARA Yoichi, LUCAS Dirk, VALLE Christophe, TOMIYAMA Akio

    JSMF Annual Meeting 2011, Aug. 2011, Japanese, 京都

    Oral presentation(general)

  • 4x4ロッドバンドル内気液二相気泡流に関する研究

    MURAMATSU Yuya, HOSOKAWA Shigeo, HAYASHI Kosuke, TOMIYAMA Akio

    JSMF Annual Meeting 2011, Aug. 2011, Japanese, 日本混相流学会, Kyoto

    Oral presentation(general)

  • 2×2ロッドバンドル内乱流の速度分布

    YAMAMOTO Taishi, HOSOKAWA Shigeo, TOMIYAMA Akio

    日本機械学会動力エネルギーシンポジウム, Jun. 2011, Japanese, 日本機械学会, Suita

    Oral presentation(general)

  • 乱流における速度の詳細計測

    HOSOKAWA Shigeo, TOMIYAMA Akio

    日本混相流学会混相流フォーラム関西・混相流の産業利用研究分科会講演会, Jun. 2011, Japanese, 日本混相流学会, Osaka

    Oral presentation(invited, special)

  • 界面追跡法に基づく気液間物質輸送の数値計算

    SAKATA, Ryosuke, HOSODA, Shogo, HAYASHI, Kosuke, TOMIYAMA, Akio

    日本機械学会関西支部 第86期定時総会講演会, Mar. 2011, Japanese, 日本機械学会関西支部, 京都

    Oral presentation(general)

  • Advances in Interface Tracking Method for Hear and Mass Transfers

    HAYASHI Kosuke, TOMIYAMA Akio, ZUN Iztok

    14th Organized Multiphase Flow Forum 2010, Nov. 2010, Japanese, The Japan Society for Multiphase Flow, Sapporo, Hokkaido

    [Invited]

    Oral presentation(invited, special)

  • 分子タグ法の混相流への適用

    HOSOKAWA Shigeo, TOMIYAMA Akio

    日本機械学会第88期流体工学部門講演会, Oct. 2010, Japanese, 日本機械学会, Yonezawa

    Oral presentation(invited, special)

  • 時系列デジタル画像を用いた空間フィルタ流速計

    SAKAMOTO Hiroki, HOSOKAWA Shigeo, TOMIYAMA Akio

    日本機械学会年次大会講演会, Sep. 2010, Japanese, 日本機械学会, Nagoya

    Oral presentation(general)

  • 鉛直ダクト内気泡流における乱れエネルギ収支

    HOSOKAWA Shigeo, SUZUKI Takashi, TOMIYAMA Akio

    日本流体力学会年会2010, Sep. 2010, Japanese, 日本流体力学会, Sapporo

    Oral presentation(general)

  • リフラックス冷却時におけるホットレグでの気液対向流挙動:VOF法によるCCFL特性への流体物性値の影響評価

    KINOSHITA Ikuo, MURASE Michio, NARIAI Toshifumi, TOMIYAMA Akio

    日本原子力学会 2010秋の大会, Sep. 2010, Japanese, 札幌

    Oral presentation(general)

  • フォトブリーチング分子タグ法による気泡乱流の計測

    HOSOKAWA Shigeo, TOMIYAMA Akio

    日本機械学会年次大会講演会, Sep. 2010, Japanese, 日本機械学会, Nagoya

    Oral presentation(invited, special)

  • Numerical simulation of bubbly flow in slurry using multi-fluid model

    OBATA, Satoshi, HAYASHI, Kosuke, TOMIYAMA, Akio

    JSMF Annual Meeting 2010, Jul. 2010, Japanese, Hamamatsu

    Oral presentation(general)

  • 加圧溶解法より発生した微細気泡の気泡径・数密度に関する研究

    TAYA Chihiro, HOSOKAWA Shigeo, TOMIYAMA Akio, MAEDA Yasunari, YAMAGUCHI Shigeyuki, ITO Yoshihiro

    JSMF Annual Meeting 2010, Jul. 2010, Japanese, 日本混相流学会, Hamamatsu

    Oral presentation(general)

  • Study on Counter-Current Flows in Scale Down Model of a PWR Surge Line

    FUTATSUGI, Takashi, NARIAI Toshifumi, TOMIYAMA Akio, KINOSHITA Ikuo, MURASE Michio

    JSMF Annual Meeting 2011, Jul. 2010, Japanese, 日本混相流学会, 浜松

    Oral presentation(general)

  • A correlation of terminal velocity for Taylor drops in vertical pipes

    KURIMOTO, Ryo, HAYASHI, Kosuke, TOMIYAMA, Akio

    JSMF Annual Meeting 2010, Jul. 2010, Japanese, Hamamatsu

    Oral presentation(general)

  • Countercurrent Gas Liquid Flow in a Rectangular Channel Simulating a PWR Hot Leg(2)

    MURASE Michio, KINOSHITA Ikuo, MINAMI Noritoshi, NARIAI Toshifumi, FUTATSUGI Takashi, TOMIYAMA Akio

    JSMF Annual Meeting 2010, Jul. 2010, Japanese, 日本混相流学会, 浜松

    Oral presentation(general)

  • Countercurrent Gas Liquid Flow in a Rectangular Channel Simulating a PWR Hot Leg(1)

    KINOSHITA Ikuo, MURASE Michio, UTANOHARA Yoichi, TOMIYAMA Akio

    JSMF Annual Meeting 2010, Jul. 2010, Japanese, 日本混相流学会, 浜松

    Oral presentation(general)

  • 気泡誘起擬似乱れに関する研究

    KATO Hirotoshi, HOSOKAWA Shigeo, TOMIYAMA Akio

    日本機械学会関西支部第85期定時総会講演会, Mar. 2010, Japanese, 日本機械学会, Kobe

    Oral presentation(general)

  • リフラックス冷却時におけるホットレグでの気液対向流挙動 (11)FZD での蒸気・水実験に対する数値計算

    木下 郁男, 村瀬 道雄, 歌野原 陽一, LUCAS Dirk, VALLEE Christophe, 冨山 明男

    日本原子力学会2010春の大会, Mar. 2010, Japanese, 水戸

    Oral presentation(general)

  • リフラックス冷却時におけるホットレグでの気液対向流挙動 (10)FZD での空気・水実験に対する数値計算

    村瀬 道雄, 木下 郁男, 歌野原 陽一, LUCAS Dirk, VALLEE Christophe, 冨山 明男

    日本原子力学会2010春の大会, Mar. 2010, Japanese, 水戸

    Oral presentation(general)

  • PWR加圧器サージ管における気液対向流に関する研究

    成相 俊文, 冨山 明男, 南 則敏, 村瀬 道雄

    日本原子力学会2010春の大会, Mar. 2010, Japanese, 水戸

    Oral presentation(general)

  • Large Eddy Simulation of Cavitating Turbulent Flow in a Nozzle

    GOSHIMA Daisuke, SOU Akira, HAYASHI Kosuke, TOMIYAMA Akio

    18th Symposium on Atomization (ILASS-Japan), Dec. 2009, Japanese, 日本液体微粒化学会, Kyushu University

    Oral presentation(general)

  • 気液二相気泡流における乱流特性

    HOSOKAWA Shigeo, TOMIYAMA Akio, HOSOKAWA Shigeo

    Organized Multiphase Flow Forum 2009, Nov. 2009, Japanese, 日本混相流学会, Nagoya

    Oral presentation(invited, special)

  • 鉛直ダクト内乱流の乱れエネルギ収支に及ぼす気泡の影響

    SUZUKI Takashi, HOSOKAWA Shigeo, TOMIYAMA Akio

    JSME Fluids Engineering Conference 2009, Nov. 2009, Japanese, 日本機械学会, Nagoya

    Oral presentation(general)

  • フォトブリーチング分子タグ法による気泡乱流の計測

    HOSOKAWA Shigeo, TOMIYAMA Akio

    日本機械学会関西支部流体工学懇話会, Nov. 2009, Japanese, 日本機械学会, Kobe

    Oral presentation(general)

  • 気泡流の光学計測

    HOSOKAWA Shigeo, TOMIYAMA Akio

    化学工学会第41回秋季大会, Sep. 2009, Japanese, 化学工学会, Hiroshima University

    Oral presentation(invited, special)

  • リフラックス冷却時におけるホットレグでの気液対向流挙 (9)実機条件に対する数値計算

    村瀬 道雄, 木下 郁男, 歌野原 陽一, 南 則敏, 成相 俊文, 冨山 明男

    日本原子力学会2009秋の大会, Sep. 2009, Japanese, 仙台

    Oral presentation(general)

  • リフラックス冷却時におけるホットレグでの気液対向流挙 (8)矩形流路実験に対するVOF 計算

    村瀬 道雄, 歌野原 陽一, 木下 郁男, 南 則敏, 冨山 明男

    日本原子力学会2009秋の大会, Sep. 2009, Japanese, 仙台

    Oral presentation(general)

  • Pressure Drops in Rod Bundle with Partial Length Rods

    OHTA Motoki, HAYASHI Kosuke, HOSOKAWA Shigeo, TOMIYAMA Akio

    JSMF Annual Meeting 2009, Aug. 2009, Japanese, 日本混相流学会, Kumamoto

    Oral presentation(general)

  • Heat Transfer Enhancement by Air Bubble Rising through Thermally Stratified Layer

    HAYASHI Kosuke, PERPAR Matjaz, ZUN Iztok, TOMIYAMA Akio

    JSMF Annual Meeting 2009, Aug. 2009, Japanese, 日本混相流学会, Kumamoto

    Oral presentation(general)

  • 気水分離器内旋回気液二相流の圧力損失評価

    片岡 宏庸, 新海 勇介, 冨山 明男

    日本混相流学会年会講演会, Aug. 2009, Japanese, 熊本

    Oral presentation(general)

  • 加圧溶解型微細気泡生成法における液相流束および溶存気体量が気泡径・数密度に及ぼす影響

    HOSOKAWA Shigeo, TANAKA Kenzo, TOMIYAMA Akio, MAEDA Yasunari, YAMAGUCHI Shigeyuki, ITO Yoshihiro

    JSMF Annual Meeting 2009, Aug. 2009, Japanese, 日本混相流学会, Kumamoto

    Oral presentation(general)

  • Terminal velocities of single large drops rising through a vertical pipe

    YOSHIKAWA Yasuki, KURIMOTO Ryo, HAYASHI Kosuke, TOMIYAMA Akio

    JSMF Annual Meeting 2009, Aug. 2009, Japanese, 日本混相流学会, Kumamoto

    Oral presentation(general)

  • Cavitating Flow in a Nozzle of a Pressure Atomizer

    GOSHIMA Daisuke, SOU Akira, HOSOKAWA Shigeo, TOMIYAMA Akio

    JSMF Annual Meeting 2009, Aug. 2009, Japanese, 日本混相流学会, Kumamoto

    Oral presentation(general)

  • スワラー形状が気水分離器内旋回二相流に及ぼす影響

    新海 勇介, 片岡 宏庸, 冨山 明男

    日本混相流学会年会講演会2009, Aug. 2009, Japanese, 熊本

    Oral presentation(general)

  • PWRホットレグでの気液対向流 ((3)数値計算とCCFL特性の比較)

    南 則敏, 村瀬 道雄, 歌野原 陽一, 西脇 大祐, 冨山 明男

    日本混相流学会年会講演会2009, Aug. 2009, Japanese, 熊本

    Oral presentation(general)

  • PWRホットレグでの気液対向流 ((2)数値計算と水位分布の比較)

    村瀬 道雄, 南 則敏, 歌野原 陽一, 成相 俊文, 西脇 大祐, 冨山 明男

    日本混相流学会年会講演会2009, Aug. 2009, Japanese, 熊本

    Oral presentation(general)

  • PWRホットレグでの気液対向流 ((1)水位分布の測定)

    成相 俊文, 冨山 明男, 村瀬 道雄

    日本混相流学会年会講演会2009, Aug. 2009, Japanese, 熊本

    Oral presentation(general)

  • フォトブリーチング分子タグ法による速度と速度勾配の同時測定

    HOSOKAWA Shigeo, TOMIYAMA Akio

    日本機械学会RC237「先端的熱流体計測法に関する研究分科会」, May 2009, Japanese, 日本機械学会, Nagoya University

    Oral presentation(general)

  • 一様せん断流中単一液滴に作用する力に関する研究

    HIGASHINO Hiroyuki, ISHII Daiki, HOSOKAWA Shigeo, TOMIYAMA Akio

    日本機械学会関西支部第84期定時総会講演会, Mar. 2009, Japanese, 日本機械学会, Osaka

    Oral presentation(general)

  • ダクト内気泡乱流場の乱れエネルギー収支

    FUKUNAGA Takayuki, SUZUKI Takashi, HOSOKAWA Shigeo, TOMIYAMA Akio

    日本機械学会関西支部第84期定時総会講演会, Mar. 2009, Japanese, 日本機械学会, Osaka

    Oral presentation(general)

  • Effect of Nozzle Length on Cavitation in a Nozzle and a Liquid Jet

    ISOZAKI Kenji, SOU Akira, HOSOKAWA Shigeo, TOMIYAMA Akio

    17th Symposium on Atomization, Dec. 2008, Japanese, 日本液体微粒化学会, Yokohama

    Oral presentation(general)

  • 気泡乱流場における乱れエネルギー収支の計測

    HOSOKAWA Shigeo, TOMIYAMA Akio

    日本機械学会関西支部秋季技術交流フォーラム, Oct. 2008, Japanese, 日本機械学会, Kyoto

    Oral presentation(general)

  • PWRホットレグを模擬した矩形流路での気液対向流(流動状態の数値解析)

    MINAMI Noritoshi, MURASE Michio, UTANOHARA Yoichi, TOMIYAMA Akio, HOSOKAWA Shigeo

    日本混相流学会年会講演会2008, Aug. 2008, Japanese, 日本混相流学会, Aizu

    Oral presentation(general)

  • PWRホットレグを模擬した矩形流路での気液対向流(運動量式に基づくCCFL特性の計算)

    MURASE Michio, MINAMI Noritoshi, NISHIWAKI Daisuke, TOMIYAMA Akio, HOSOKAWA Shigeo

    日本混相流学会年会講演会2008, Aug. 2008, Japanese, 日本混相流学会, Aizu

    Oral presentation(general)

  • Gas-Liquid Two-Phase Flow in a Rod Bundle with Partial Length Rods

    MIZUTANI Yoshitaka, HOSOKAWA Shigeo, SOU Akira, TOMIYAMA Akio

    日本混相流学会年会講演会2008, Aug. 2008, Japanese, 会津

    Oral presentation(general)

  • Numerical Simulation of Bubble Coalescence in Bubbly Flows

    KANG Hyungha, SOU Akira, TOMIYAMA Akio

    混相流学会年会講演会2008, Aug. 2008, Japanese, 会津

    Oral presentation(general)

  • マイクロバブルの気泡径に及ぼす混入気泡の影響

    TANAKA Kenzo, HOSOKAWA Shigeo, TOMIYAMA Akio, YAMAGUCHI Shigeyuki, MAEDA Yasunari, ITO Yoshiyasu

    日本混相流学会年会講演会2008, Aug. 2008, Japanese, 日本混相流学会, Aizu

    Oral presentation(general)

  • A Three-Dimensional PIV using Intensity Gradients of a Two-Color Laser Sheet

    SAJI Akihiro, HOSOKAWA Shigeo, TOMIYAMA Akio

    日本機械学会関西支部 第83期定時総会講演会, Mar. 2008, Japanese, 日本機械学会, Osaka

    Oral presentation(general)

  • Dimensionless Index for Cavitation in Nozzles of Various Geometries

    Muhammad Ilham Maulana, ISOZAKI Kenji, SOU Akira, HOSOKAWA Shigeo, TOMIYAMA Akio

    第16回微粒化シンポジウム, Dec. 2007, English, Osaka

    Oral presentation(general)

  • Two-Phase Swirling Flow in a Gas-Liquid Separator

    KATAOKA Hironobu, NISHIWAKI Daisuke, TOMIYAMA Akio, HOSOKAWA Shigeo, CHAKI Masao

    JSMF Annual Meeting 2007, Jun. 2007, Japanese, 日本混相流学会, Sapporo

    Oral presentation(general)

  • Experimental Study of Counter-Current Flow in a Hot Leg of PWR

    NISHIWAKI Daisuke, KATAOKA Hironobu, TOMIYAMA Akio, HOSOKAWA Shigeo, SASAKI Yasuhiro, MINAMI Noritoshi

    JSMF Annual Meeting 2007, Jun. 2007, Japanese, 日本混相流学会, Sapporo

    Oral presentation(general)

  • Dissolution of Single Carbon Dioxide Bubbles in a Vertical Pipe

    OKAWA Hideaki, ABE Satoru, HOSOKAWA Shigeo, TOMIYAMA Akio

    JSMF Annual Meeting 2007, Jun. 2007, Japanese, 日本混相流学会, Sapporo

    Oral presentation(general)

  • Measurements of Turbulent Bubbly Flow using Photobleaching Molecular Tagging Velocimetry

    HOSOKAWA Shigeo, FUKUNAGA Takayuki, KOBAYASHI Atsuki, TOMIYAMA Akio

    JSMF Annual Meeting 2006, Jun. 2007, Japanese, 日本混相流学会, Hokkaido

    Oral presentation(general)

  • Effects of nozzle shape and size on cavitation and liquid jet atomization

    SOU Akira, Muhammad Ilham Maulana, ISOZAKI Kenji, HOSOKAWA Shigeo, TOMIYAMA Akio

    JSMF Annual Meeting 2007, Jun. 2007, Japanese, 日本混相流学会, Sapporo

    Oral presentation(general)

  • Research on Hyper ABWR Plants of Extended Core Power Density: Experimental Study on Characteristics of Two-Phase Flow in a Steam Separator

    KATAOKA Hironobu, NISHIWAKI Daisuke, TOMIYAMA Akio, HOSOKAWA Shigeo, SOU Akira, CHAKI Masao

    2007 Annual Meeting of AESJ, Mar. 2007, Japanese, 日本原子力学会, Nagoya

    Oral presentation(general)

  • Multi-Fluid Simulation of Turbulent Bubbly Pipe Flows

    HASHIMOTO Shohei, HOSOKAWA Shigeo, TOMIYAMA Akio, SOU Akira

    日本機械学会関西支部第82期定時総会講演会, Mar. 2007, Japanese, 日本機械学会, Osaka

    Oral presentation(general)

  • Measurement of Turbulent Duct Flow using a Photobleaching Molecular Tagging Method

    KOBAYASHI Atsuki, HOSOKAWA Shigeo, TOMIYAMA Akio

    日本機械学会関西支部第82期定時総会講演会, Mar. 2007, Japanese, 日本機械学会, Osaka

    Oral presentation(general)

  • Counter-current flow in a hot leg of PWR

    NISHIWAKI Daisuke, KATAOKA Hironobu, TOMIYAMA Akio, HOSOKAWA Shigeo, SASAKI Yasuhiro, MINAMI Noritoshi

    2007 Annual Meeting of AESJ, Mar. 2007, Japanese, Nagoya

    Oral presentation(general)

  • フェーズフィールド界面追跡法による二相流数値シミュレーション

    TAKADA, Naoki, HIROKAWA, Keishun, HAYASHI, Kosuke, TOMIYAMA, Akio

    日本流体力学会第20回数値流体力学シンポジウム, CO-ROM (6 pages), Dec. 2006, Japanese, 日本流体力学会, 名古屋

    Oral presentation(general)

  • Research on Hyper ABWR Plants of Extended Core Power Density (7) Experimental Study on Characteristics of Two-Phase Flow in a Steam Separator

    KATAOKA Hironobu, NISHIWAKI Daisuke, TOMIYAMA Akio, HOSOKAWA Shigeo, SOU Akira, CHAKI Masao

    2006 Fall Meeting of AESJ, Oct. 2006, Japanese, 日本原子力学会, Hokkaido

    Oral presentation(general)

  • Mechanism of Liquid Jet Atomization by Cavitation in a Nozzle

    SOU Akira, HOSOKAWA Shigeo, TOMIYAMA Akio

    オーガナイズド混相流フォーラム(OMF2006), Oct. 2006, Japanese, Miyagi

    [Invited]

    Oral presentation(invited, special)

  • Measurement of Micro-Bubbles Generated in a Two-Dimensional Nozzle

    KOEDA Ryoichi, HOSOKAWA Shigeo, TOMIYAMA Akio, ROKUSHIMA Kazumasa, YAMAGUCHI Shigeyuki, MAEDA Yasunari

    JSMF Annual Meeting 2006, Aug. 2006, Japanese, 日本混相流学会, Kanazawa

    Oral presentation(general)

  • Effects of Cavitation in 2D Nozzle on Liquid Jet Atomization

    MAEDA Tatsutoshi, Maulana Muhammad Ilham, SOU Akira, HOSOKAWA Shigeo, TOMIYAMA Akio

    JSMF Annual Meeting 2006, Aug. 2006, Japanese, 日本混相流学会, Kanazawa

    Oral presentation(general)

  • Research on Hyper ABWR Plants of Extended Core Power Density (4) (Experimental Study on Characteristics of Two-Phase Flow in a Small Scale Steam Separator Model)

    KATAOKA Hironobu, HOSOKAWA Shigeo, TOMIYAMA Akio, CHAKI Masao, MURASE Michio

    JSMF Annual Meeting 2006, Aug. 2006, Japanese, 日本混相流学会, Kanazawa

    Oral presentation(general)

  • Numerical Simulation of Heterogeneous Bubbly Flow in a Bubble Column

    KINOSHITA Kouji, MAEKAWA Munenori, SHIMADA Naoki, SOU Akira, TOMIYAMA Akio

    JSMF Annual Meeting 2006, Aug. 2006, Japanese, 日本混相流学会, Kanazawa

    Oral presentation(general)

  • Bubble Dissolution of CO2-Water Two-Phase Bubbly Flow in a Vertical Pipe

    NOZAWA Satoshi, ABE Satoru, HOSOKAWA Shigeo, SOU Akira, TOMIYAMA Akio

    JSMF Annual Meeting 2006, Aug. 2006, Japanese, Kanazawa

    Oral presentation(general)

  • Influence of Obstacle on Bubble Motion in High Speed Flows in a Vertical Duct

    ZHENG Zhang, MAKINO Yasushi, KATAOKA Hironobu, HOSOKAWA Shigeo, TOMIYAMA Akio

    JSMF Annual Meeting 2006, Aug. 2006, Japanese, 日本混相流学会, Kanazawa

    Oral presentation(general)

  • Study on Lift Force Acting on Single Drops in Linear Shear Flow

    OGAWA Kohei, Win Myint, HAYASHI Kosuke, HOSOKAWA Shigeo, TOMIYAMA Akio

    JSMF Annual Meeting 2006, Aug. 2006, Japanese, Kanazawa

    Oral presentation(general)

  • Verification of Numerical Method for a Flow with Density Distribution

    SOU Akira, MAEDA Akiyoshi, HOSOKAWA Shigeo, TOMIYAMA Akio

    34th Symposium on Visualization, Jul. 2006, Japanese, 可視化情報学会, Tokyo

    Oral presentation(general)

  • Influence of Ambient Gas Density on Unsteady Spray Injected from a Swirl Injector

    HOSOKAWA Shigeo, SOU Akira, Muhammad Ilham Maulana, TOMIYAMA Akio

    34th Symposium on Visualization, Jul. 2006, Japanese, 可視化情報学会, Tokyo

    Oral presentation(general)

  • 二相流シミュレーションの界面移流・再構成計算に対するカーン‐ヒリヤード方程式の適用性の検討

    TAKADA, Naoki, HIROKAWA, Keishun, HAYASHI, Kosuke, TOMIYAMA, Akio

    日本計算工学会第11回計算工学講演会, pp. 415-416, Jun. 2006, Japanese, 日本計算工学会, 大阪

    Oral presentation(general)

  • Diameter and Velocity Measurements of Micro Bubbles

    AKAGAWA Junichi, HOSOKAWA Shigeo, TOMIYAMA Akio, ROKUSHIMA Kazumasa, YAMAGUCHI Shigeyuki, MAEDA Yasunari

    日本機械学会流体工学部門講演会2005, Oct. 2005, Japanese, Kanazawa

    Oral presentation(general)

  • Effect of Surrounding Gas Density on Spray Characteristics of Swirl Injector

    NOMURA Ryosuke, SOU Akira, HOSOKAWA Shigeo, TOMIYAMA Akio

    日本機械学会流体工学部門講演会, Oct. 2005, Japanese, 金沢

    Oral presentation(general)

  • Terminal Velocities of Single Drops in Stagnant Liquids

    WIN Myint, TOMIYAMA Akio, HOSOKAWA Shigeo

    日本流体力学会年会2005, Sep. 2005, English, Tokyo

    Oral presentation(general)

  • 広範囲の燃料格子仕様に適用する汎用沸騰遷移解析手法に関する技術開発(2)-サブチャンネル内流動様式の測定-

    TSUBO Yasushi, MIZUTANI Yoshitaka, HOSOKAWA Shigeo, TOMIYAMA Akio, MISHIMA Kaichiro, KUDO Yoshiro

    日本原子力学会2005年秋の大会, Sep. 2005, Japanese, Aomori

    Oral presentation(general)

  • Effects of Turbulent Cavitation Flow in a Two-Dimensional Nozzle on Liquid Atomization

    SOU Akira, NIGORIKAWA Shinji, MAEDA Tatsutoshi, TOMIYAMA Akio, HOSOKAWA Shigeo

    日本混相流学会年会講演会2005, Aug. 2005, Japanese, 東京

    Oral presentation(general)

  • Development of a Hybrid Method for Dispersed Multi-Phase Flows

    SAKODA Kenichi, SOU Akira, TOMIYAMA Akio

    日本混相流学会年会講演会2005, Aug. 2005, Japanese, 東京

    Oral presentation(general)

  • 二相流界面追跡シミュレーションのためのフェーズフィールド法

    TAKADA Naoki, MISAWA Masaki, TOMIYAMA Akio

    日本混相流学会年会講演会2005, Aug. 2005, Japanese, 東京

    Oral presentation(general)

  • Motion of Small Bubbles in High-Speed Flows in a Vertical Duct containing an Obstacle

    ZHANG Zheng, KATAOKA Hironobu, MAKINO Yasushi, TOMIYAMA Akio, HOSOKAWA Shigeo

    日本機械学会第18回計算力学講演会, Aug. 2005, Japanese, Ibaragi

    Oral presentation(general)

  • 強制対流サブクール沸騰中における蒸気泡挙動の数値解析

    OKAWA Tomio, TOMIYAMA Akio, KATAOKA Isao, MORI Michitsugu

    日本混相流学会年会講演会2005, Aug. 2005, Japanese, 東京

    Oral presentation(general)

  • Influence of Liquid Phase Turbulence on Relative Velocity between Bubbles and Liquid

    HOSOKAWA Shigeo, HASHIMOTO Shohei, TOMIYAMA Akio

    日本混相流学会年会講演会2005, Aug. 2005, Japanese, Tokyo

    Oral presentation(general)

  • Numerical Simulation of Heterogeneous Bubbly Flow in a Bubble Column

    MAEKAWA Munenori, KAKUZAWA Masahiro, KINOSHITA Kouji, SOU Akira, TOMIYAMA Akio

    日本混相流学会年会講演会2005, Aug. 2005, Japanese, 東京

    Oral presentation(general)

  • Gas-Liquid Two-Phase Flow Pattern in a Rod Bundle

    MIZUTANI Yoshitaka, TSUBO Yasushi, MISHIMA Kaichiro, KUDO Yoshiro, SOU Akira, HOSOKAWA Shigeo, TOMIYAMA Akio

    日本混相流学会年会講演会2005, Aug. 2005, Japanese, 東京

    Oral presentation(general)

  • Simultaneous measurement of velocity and velocity gradient using photobleaching molecular tagging velocimetry

    AKAGAWA Junichi, KOBAYASHI Atsuki, 細川 茂雄, 冨山 明男

    日本混相流学会年会講演会2005, Aug. 2005, Japanese, Tokyo

    Oral presentation(general)

  • Simultaneous measurement of velocity and velocity gradient using photobleaching molecular tagging velocimetry

    HOSOKAWA Shigeo, AKAGAWA Junichi, TOMIYAMA Akio

    第33回可視化情報シンポジウム, Jul. 2005, Japanese, Tokyo

    Oral presentation(general)

  • 表面張力評価へのカーン‐ヒリヤード方程式の応用

    HAYASHI, Kosuke, TAKADA, Naoki, TOMIYAMA, Akio

    日本機械学会第18回計算力学講演会, pp. 805-806, 2005, Japanese, 日本機械学会, 筑波

    Oral presentation(general)

  • ノズル内キャビテーション流れの可視化とLDV計測

    宋 明良, 濁川 慎司, 冨山 明男, 細川 茂雄, 松本 洋一郎

    第13回微粒化シンポジウム, Dec. 2004, Japanese, 日本液体微粒化学会, 東京

    Oral presentation(general)

  • 二酸化炭素-水系鉛直管内気泡流に関する研究

    嶋 敏秀, 白井 正貴, 冨山 明男, 細川 茂雄, 宋 明良

    日本混相流学会年会講演会, 2004, Japanese, 日本混相流学会, 岡山大学

    Oral presentation(general)

  • 集合体内二層流流動様式遷移条件評価式の開発

    三島 嘉一郎, 冨山 明男, 工藤 義朗, 白川 典幸

    日本原子力学会春の年会, 2004, Japanese, 日本原子力学会, 岡山大学

    Oral presentation(general)

  • 改良SCA法による液体粒子の界面追跡計算

    林 公祐, Win Myint, 宋 明良, 冨山 明男

    日本混相流学会年会講演会, 2004, Japanese, 日本混相流学会, 岡山大学

    Oral presentation(general)

  • 鉛直円管内気液二相気泡乱流における気泡運動に関する研究

    藤墳 哲平, 細川 茂雄, 冨山 明男

    日本混相流学会年会講演会, 2004, Japanese, 日本混相流学会, 岡山大学

    Oral presentation(general)

  • インジェクタのノズル内キャビテーションと液体噴流の可視化

    濁川 慎司, 宋 明良, 冨山 明男, 細川 茂雄, 松本 洋一郎

    日本混相流学会年会講演会, 2004, Japanese, 日本混相流学会, 岡山大学

    Oral presentation(general)

  • Terminal Velocities of Single Drops rising through Stagnant Liquids

    Win Myint, MATSUMOTO Daisuke, SOU Akira, HOSOKAWA Shigeo, TOMIYAMA Akio

    日本混相流学会年会講演会, 2004, English, 日本混相流学会, 岡山大学

    Oral presentation(general)

  • 2波長の光強度勾配を用いた3次元粒子画像流速計の開発

    細川 茂雄, 今井 健二郎, 冨山 明男

    第32回可視化情報シンポジウム, 2004, Japanese, 可視化情報学会, 工学院大学

    Oral presentation(general)

  • 粒子画像流速測定法を用いた気泡周りの圧力評価

    今井 健二郎, 細川 茂雄, 冨山 明男

    日本混相流学会年会, 2003, Japanese, 日本混相流学会, 大阪大学

    Oral presentation(general)

  • 微粒化ノズル内キャビテーション流れと液体噴流の微粒化

    宋 明良, 林 公祐, 新田 真一, 冨山 明男

    日本混相流学会年会講演会, 2003, Japanese, 日本混相流学会, 大阪大学

    Oral presentation(general)

  • 非均質気泡プルームに関する研究

    吉田 悟, 島田 直樹, 冨山 明男, 細川 茂雄

    日本混相流学会年会講演会, 2003, Japanese, 日本混相流学会, 大阪大学

    Oral presentation(general)

  • 混相流数値解析における格子ボルツマン法の界面モデルに関する検討

    高田 尚樹, 冨山 明男

    日本機械学会第16回計算力学講演会, 2003, Japanese, 日本機械学会計算力学部門, 神戸大学工学部

    Oral presentation(general)

  • 気泡追跡法による気泡揺動運動予測の試み

    迫田 健一, 宋 明良, 冨山 明男

    日本混相流学会年会講演会, 2003, Japanese, 日本混相流学会, 大阪大学

    Oral presentation(general)

  • 簡素化界面再構築法に基づく界面追跡法

    宋 明良, 林 公祐, 冨山 明男

    日本機械学会第16回計算力学講演会, 2003, Japanese, 日本機械学会計算力学部門, 神戸大学工学部

    Oral presentation(general)

  • 界面追跡法による気液二相流数値予測の試み

    林 公祐, 宋 明良, 冨山 明男

    産学官技術フォーラム’03, 2003, Japanese, 神戸市立工業高等専門学校, 神戸商工会議所, 神戸市産業振興センター

    Poster presentation

  • 鉛直流路内気泡の上昇速度に関する研究

    三橋 真人, 冨山 明男, 細川 茂男, 宋 明良

    日本混相流学会年会講演会, 2003, Japanese, 日本混相流学会, 大阪大学

    Oral presentation(general)

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    Oral presentation(general)

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    日本機械学会年次大会講演会, 2003, Japanese, 日本機械学会, 徳島大学

    Oral presentation(general)

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    日本混相流学会年会, 2003, Japanese, 日本混相流学会, 大阪大学

    Oral presentation(general)

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    日本混相流学会年会講演会, 2003, Japanese, 日本混相流学会, 大阪大学

    Oral presentation(general)

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    第41回燃焼シンポジウム, 2003, Japanese, 日本燃焼学会, つくば市

    Oral presentation(general)

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    日本機械学会年次大会講演会, 2003, Japanese, 日本機械学会, 徳島大学

    Oral presentation(general)

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    混相流シンポジウム'95, Jul. 1995, Japanese, 松山

    Oral presentation(general)

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    混相流シンポジウム'95, Jul. 1995, Japanese, 松山

    Oral presentation(general)

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    日本機械学会九州支部北九州地方講演会, Nov. 1994, Japanese, 北九州

    Oral presentation(general)

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    日本学術会議シンポジウム「C.G.で見る流れの世界」, Jul. 1994, Japanese, 東京

    Oral presentation(general)

  • ダクト内流れ中単一気泡の運動に及ぼす各種無次元数の影響

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    混相流シンポジウム'94, Jul. 1994, Japanese, 筑波

    Oral presentation(general)

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    日本機械学会熱工学講演会, Nov. 1993, Japanese, 東京

    Oral presentation(general)

  • 静止液中管内単一大気泡の形状と上昇速度

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    混相流シンポジウム'93, Jul. 1993, Japanese, 福岡

    Oral presentation(general)

  • 管内気泡流の詳細解析

    冨山明男, SOU AKIRA, 坂口忠司

    日本機械学会第70期通常総会講演会, Mar. 1993, Japanese, 八王子

    Oral presentation(general)

  • 揺動気泡の数値解析

    冨山明男, SOU AKIRA, 坂口忠司

    混相流シンポジウム'92, Jul. 1992, Japanese, 仙台

    Oral presentation(general)

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    冨山明男, SOU AKIRA, 坂口忠司

    第29回日本伝熱シンポジウム, May 1992, Japanese

    Oral presentation(general)

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    日本機械学会関西支部講演会1991, Mar. 1992, Japanese

    Oral presentation(general)

  • VOF法による気泡挙動の解析

    冨山明男, SOU AKIRA, 松井 幹, 坂口忠司

    日本機械学会流体工学部門講演会1991, Aug. 1991, Japanese, 岡山

    Oral presentation(general)

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    冨山明男, SOU AKIRA, 南川久人, 坂口忠司

    混相流シンポジウム'90, Jul. 1990, Japanese, 名古屋

    Oral presentation(general)

Industrial Property Rights

  • プロセス解析プログラムならびにプロセス解析装置およびそれを用いた運転シュミレータ装置

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    特願2008-213976, 22 Aug. 2008, 特許5078027, 07 Sep. 2012



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