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2022 Fiscal Year Annual Research Report

CFD simulations of fluid dynamics in sports science for better performance of athletes

Research Project

Project/Area Number 20K19503
Research InstitutionInstitute of Physical and Chemical Research

Principal Investigator

BALE RAHUL  国立研究開発法人理化学研究所, 計算科学研究センター, 研究員 (20728737)

Project Period (FY) 2020-04-01 – 2023-03-31
KeywordsBiomechanics / Sports Fluid Dynamics / Immersed boundary method
Outline of Annual Research Achievements

Conducting computational fluid dynamics (CFD) simulations of sports under real-world conditions presents a myriad of challenges that must be tackled to produce accurate results. To address these challenges, researchers have developed a state-of-the-art CFD framework that is capable of reproducing real-world conditions in numerical simulations with unprecedented accuracy. This framework is the culmination of two key innovations that represent significant breakthroughs in the field of sports simulation. The first innovation is a novel immersed boundary method that accurately represents complex geometries and boundary conditions. The second innovation involves the incorporation of a Lagrangian-Eulerian framework into the CFD solver CUBE. This framework enables the solver to handle complex moving and deforming geometries in a computationally efficient manner. By leveraging these advancements, researchers have been able to successfully apply the framework to real-world sports scenarios, such as swimming and ski-jump simulations. These simulations have demonstrated the framework's effectiveness in accurately modeling real-world sports scenarios, and have highlighted its potential for future research and analysis in sports science and engineering.

  • Research Products

    (3 results)

All 2022

All Journal Article (2 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 2 results) Presentation (1 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] A one-sided direct forcing immersed boundary method using moving least squares2022

    • Author(s)
      Bale Rahul、Bhalla Amneet Pal Singh、Griffith Boyce E.、Tsubokura Makoto
    • Journal Title

      Journal of Computational Physics

      Volume: 440 Pages: 110359~110359

    • DOI

      10.1016/j.jcp.2021.110359

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Numerical study of transient aerodynamic forces acting on a ski jumper considering dynamic posture change from takeoff to landing2022

    • Author(s)
      Yamamoto Keizo、Nishino Takahiro、Bale Rahul、Shimada Tokimasa、Miyamoto Naoto、Tsubokura Makoto
    • Journal Title

      Sports Biomechanics

      Volume: NA Pages: 1~15

    • DOI

      10.1080/14763141.2022.2154256

    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Analysis of Aerodynamic Forces Acting on a Ski Jumper from Takeoff to Landing Using Computational Fluid Dynamics2022

    • Author(s)
      Keizo Yamamoto
    • Organizer
      The 27th Annual Congress of the European College of Sport Science
    • Int'l Joint Research

URL: 

Published: 2023-12-25  

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