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BALE Rahul
Graduate School of System Informatics / Department of System Informatics
Associate Professor

Research activity information

■ Award
  • Jul. 2021 The Platform for Advanced Scientific Computing (https://pasc21.pasc-conference.org/program/awarded-contributions/), Best Paper, Simulation of Droplet Dispersion in COVID-19 Type Pandemics on Fugaku
    Rahul Bale, ChungGang Li, Masashi Yamakawa, Akiyoshi Iida, Ryoichi Kurose, Makoto Tsubokura

  • May 2021 The Japan Society for Computational Engineering and Science, Best Graphics award, Dispersion of cough droplets in an indoor environment
    Rahul Bale, ChungGang Li, Masashi Yamakawa, Akiyoshi Iida, Ryoichi Kurose, Makoto Tsubokura

  • Mar. 2021 RIKEN, RIKEN EIHO (Significant Achievement) Award, Prediction and countermeasure for droplet/Aerosol infection in indoor environments for the fight against COVID19
    Rahul Bale, Keiji Onishi, Kazuto Ando, Makoto Tsubokura

■ Paper
■ MISC
  • スキージャンプにおける離陸から着地までの一連の競技動作を考慮した空力シミュレーション—Numerical Analysis of Aerodynamic Forces Acting on a Ski Jumper from Takeoff to Landing—第36回数値流体力学シンポジウム特集 ; 特集 注目研究in CFD36
    池田 紳, 山本 敬三, 西野 貴裕, Rahul BALE, 嶋田 宗将, 坪倉 誠
    東京 : 日本流体力学会, Apr. 2023, ながれ : 日本流体力学会誌 = Nagare : journal of Japan Society of Fluid Mechanics, 42(2) (2), 91 - 94, Japanese

  • The numerical simulation of spread of droplets in lecture room
    田尻 恭平, Bale Rahul, 李 崇綱, 弓野 沙織, 近藤 宏二, 山川 勝史, 坪倉 誠
    日本計算工学会, Jun. 2021, 計算工学講演会論文集 Proceedings of the Conference on Computational Engineering and Science, 26, 883 - 885, Japanese

  • Dispersion and evaporation of airborne respiratory droplets
    Bale Rahul, Li Chung-Gang, Iida Akiyoshi, Yamakawa Masashi, Kurose Ryoichi, Makoto Tsubokura
    日本計算工学会, Jun. 2021, 計算工学講演会論文集 Proceedings of the Conference on Computational Engineering and Science, 26, 902 - 904, English

  • Aerodynamics simulation framework for Ski-jumping take-off and its application to various jumpers
    梶本 裕雅, 小山 峻平, BALE Rahul, 山本 敬三, 坪倉 誠
    日本流体力学会, Apr. 2020, ながれ : 日本流体力学会誌 = Nagare : journal of Japan Society of Fluid Mechanics, 39(2) (2), 88 - 91, Japanese

  • CHO Younghwa, BALE Rahul, ODA Takeo, OSHIMA Nobuyuki
    The Japan Society of Mechanical Engineers, 2020, The Proceedings of Mechanical Engineering Congress, Japan, 2020, J05112, Japanese

  • Analysis of underwater undulatory swimming using self-propulsion simulations
    Bale Rahul, Ando Kazuto, Hayashi Yuki, Onishi Keiji, Tsubokura Makoto
    日本計算工学会, May 2019, 計算工学講演会論文集 Proceedings of the Conference on Computational Engineering and Science, 24, 3p, English

  • KOYAMA Shumpei, YAMAMOTO Keizo, KAJIMOTO Hiromasa, BALE Rahul, IKEDA Jun, TSUBOKURA Makoto

    The ski jumper rapidly changes the body posture from crouching to flight posture during take off. In this study, the relationship between flight distance and take-off motion, in terms of trunk angle of attack and lift-drag ratio, was investigated through aerodynamics simulations that reproduce the take-off motion dynamically. The trunk angle of attack was extracted from two-dimensional image in the sagittal plane of the take-off motion. From the results of the numerical simulation it was found that athletes with higher lift-drag ratio at the initial take-off posture had longer flight distance and the frontal pressure on these athletes was relatively lower.

    The Japan Society of Mechanical Engineers, 2019, The Proceedings of the Symposium on sports and human dynamics, 2019, B - 2, Japanese

  • The four-stroke IC engine simulation using hierarchical Cartesian mesh framework by CUBE
    Wang Wei-Hsiang, Li Chung-Gang, Bale Rahul, Onishi Keiji, Tsubokura Makoto
    日本計算工学会, Jun. 2018, 計算工学講演会論文集 Proceedings of the Conference on Computational Engineering and Science, 23, 6p, English

  • A stencil penalty approach for improving accuracy of constraint immersed boundary method
    Bale Rahul, Jansson Niclas, Onishi Keiji, Tsubokura Makoto, Patankar Neelesh
    日本計算工学会, May 2017, 計算工学講演会論文集 Proceedings of the Conference on Computational Engineering and Science, 22, 3p, English

  • An immersed boundary framework for large scale simulations with moving structures
    Bale Rahul, Jansson Niclas, Onishi Keiji, Tsubokura Makoto
    日本計算工学会, May 2016, 計算工学講演会論文集 Proceedings of the Conference on Computational Engineering and Science, 21, 4p, English

■ Research Themes
  • CFD simulations of fluid dynamics in sports science for better performance of athletes
    Japan Society for the Promotion of Science, Grants-in-Aid for Scientific Research Grant-in-Aid for Early-Career Scientists, Grant-in-Aid for Early-Career Scientists, Institute of Physical and Chemical Research, 01 Apr. 2020 - 31 Mar. 2022

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