Analysis of the effect of swimmer's head position on swimming performance using computational fluid dynamics.
Analysis of the effect of swimmer's head position on swimming performance using computational fluid dynamics.
复制标题
使用计算流体动力学分析游泳者头部位置对游泳表现的影响。
DOI：
10.1016/j.jbiomech.2008.02.005
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发表时间：
2008
影响因子：
2.4
通讯作者：
G. Polidori
中科院分区：
文献类型：
--
作者：
H. Zaïdi;R. Taiar;S. Fohanno;G. Polidori
本文的目的是分析游泳运动员头部位置对水动力性能的影响。在这项初步研究中，问题被建模为二维和稳定的流体动力学状态。通过CAD软件CATIA©生成几何形状，并通过使用CFD Fluent代码进行数值模拟。采用标准k-ε湍流模型和特定的壁面定律。三个位置的头部进行了研究，雷诺数的范围约为106。数值结果表明，头部位置对水动力性能有显著影响，强烈地改变了游泳者周围的尾流。这些结果的分析，有可能提出一个最佳的位置，在水下游泳的游泳者的头部。
The aim of this numerical work is to analyze the effect of the position of the swimmer's head on the hydrodynamic performances in swimming. In this initial study, the problem was modeled as 2D and in steady hydrodynamic state. The geometry is generated by the CAD software CATIA©and the numerical simulation is carried out by the use of the CFD Fluent code. The standard k–ε turbulence model is used with a specific wall law. Three positions of the head were studied, for a range of Reynolds numbers about 106. The obtained numerical results revealed that the position of the head had a noticeable effect on the hydrodynamic performances, strongly modifying the wake around the swimmer. The analysis of these results made it possible to propose an optimal position of the head of a swimmer in underwater swimming.