A Computational Fluid Dynamics Analysis of Hydrodynamic Force Acting on a Swimmer’S Hand in a Swimming Competition

作者： | Yohei Sato, Takanori Hino |

作者单位： |
^{1}Nuclear Energy and Safety, Paul Scherrer Institute, Villigen PSI, 5232 Villigen, Switzerland |

刊名： | Journal of Sports Science and Medicine, 2013, Vol.12 (4), pp.679-689 |

来源数据库： | Directory of Open Access Journals |

关键词： | Computational fluid dynamics; Swimming; Drag; Thrust; Thrust efficiency; Stroke analysis; |

原始语种摘要： | A stroke-analysis system based on a CFD (Computational Fluid Dynamics) simulation has been developed to evaluate the hydrodynamic forces acting on a swimmer’s hand. Using the present stroke-analysis system, a stroke technique of top swimmers can be recognized with regard to the hydrodynamic forces. The developed analysis system takes into account the effect of a transient stroke motion including acceleration and a curved stroke path without using assumptions such as a quasi-static approach. An unsteady Navier-Stokes solver based on an unstructured grid method is employed as the CFD method to calculate a viscous flow around a swimmer’s hand which can cope with the complicated geometry of hands. The CFD method is validated by comparison with experiments in steady-state and transient... |