Volume 32 Issue 04
Apr.  2006
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Kang Honglin, Yuan Wu, Gao Ruize, et al. Numerical simulation of influence of two different hand-figures on swim propulsive efficiency[J]. Journal of Beijing University of Aeronautics and Astronautics, 2006, 32(04): 481-483. (in Chinese)
Citation: Kang Honglin, Yuan Wu, Gao Ruize, et al. Numerical simulation of influence of two different hand-figures on swim propulsive efficiency[J]. Journal of Beijing University of Aeronautics and Astronautics, 2006, 32(04): 481-483. (in Chinese)

Numerical simulation of influence of two different hand-figures on swim propulsive efficiency

  • Received Date: 25 Jan 2005
  • Publish Date: 30 Apr 2006
  • In order to find which hand-figures could provide higher propulsive efficiency for swimming, two different 3D unstructured grid models of a native woman swimmer’s hand and forearm were generated based on two hand-figures-fingers splaying and fingers holding together. The numerical technique of computational fluid dynamics (CFD) was applied to calculate the steady flow around the swimmer's hand and forearm in two different hand-figures at various speeds when angle of attack was 90°. The drags, lifts and corresponding coefficients were computed for the hand and forearm, and the flow fields around the hand and forearm were analyzed based on the calculated data, which showed the influence of hand-figures on swimming propulsive efficiency. The results show that the forcescaused by pressure difference are the major part of the propulsive forces, swimming with fingers holding together provides higher propulsive efficiency than swimming with fingers splaying when the angle of attack is 90°.

     

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  • [1] Berger M A, Groot G, Hollander A P. Hydrodynamic drag and lift forces on human arm models[J]. Journal of Biomechanics, 1995,28(2):125~133 [2] Schleihauf R E. Hydrodynamic analysis of swimming proprlsion, swimming Ⅲ . International Series of Sports Sciences, University Park Press, 1979 [3] Wood T C. Fluid dynamic analysis of the propulsive potential of the hand and forearm in swimming . Master of Science Thesis, Dalhousie University Press, Halifax, NS, 1977 [4] Berger M A, Hollander A P, Groot G. Determining propulsive force in front crawl swimming:a comparison of two methods[J]. Journal of Sport Sciences, 1999,17(2):97~105 [5] Bixler B S, Riewald S. Analysis of a swimmer’s hand and arm in steady flow conditions using computational fluid dynamics[J]. Journal of Biomechanics, 2002, 35(8):713~717 [6] Bixler B S, Schloder M. Computational fluid dynamics:an analytical tool for the 21st century swimming scientist[J]. Journal of Swimming Research, 1996,11(1):4~22 [7] 王新峰, 王连泽. 划水时手指张角的变化对游泳推进力影响的数值模拟 . 西安体育学报, 2004, 21(5):56~58 Wang Xinfeng, Wang Lianze. Numerical simulation of influence of variation of fingers flare angle on propulsion in pull[J]. Journal of Xi’ an Institute of Physical Education, 2004, 21(5):56~58(in Chinese) [8] 狄 建. 对游泳推进力基础理论的分析归纳与认知[J]. 体育科学, 2002, 22(1):77~80 Di Jian. Cognition and analysis of the classified
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