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3D Numerical Simulation Analysis of Passive Drag near Free Surface in Swimming 被引量：1

3D Numerical Simulation Analysis of Passive Drag near Free Surface in Swimming
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摘要 The aim of this work is to build a 3D numerical model to study the characteristics of passive drag on competitive swimmers taking into account the impact of the free surface. This model solves the 3D incompressible Navier-Stokes equations using RNG k-ε turbulence closure. The volume of fluid（VOF） method is used to locate the free surface. The 3D virtual model is created by Computer Aided Industrial Design（CAID） software, Rhinoceros. Firstly, a specific posture of swimming is studied. The simulation results are in good agreement with the data from mannequin towing experiments. The effects of a swimmer＇s arms and legs positions on swimming performance are then studied. Finally, it is demonstrated that the present method is capable of simulating gliding near the free surface. The aim of this work is to build a 3D numerical model to study the characteristics of passive drag on competitive swimmers taking into account the impact of the free surface. This model solves the 3D incompressible Navier-Stokes equations using RNG k-ε turbulence closure. The volume of fluid（VOF） method is used to locate the free surface. The 3D virtual model is created by Computer Aided Industrial Design（CAID） software, Rhinoceros. Firstly, a specific posture of swimming is studied. The simulation results are in good agreement with the data from mannequin towing experiments. The effects of a swimmer＇s arms and legs positions on swimming performance are then studied. Finally, it is demonstrated that the present method is capable of simulating gliding near the free surface.
作者 詹杰民 李天赠 陈学彬 李毓湘 韦永康
机构地区 Department of Applied Mechanics and Engineering Department of Civil and Environmental Engineering
出处 《China Ocean Engineering》 SCIE EI CSCD 2015年第2期265-273,共9页 中国海洋工程（英文版）
基金 financially supported by the Fundamental Research Funds for the Central Universities of China
关键词 swimming passive drag VOF method numerical simulation swimming passive drag VOF method numerical simulation
分类号 G861.1 [文化科学—体育训练]
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参考文献14

  • 1Bixler, B. and Schloder, M., 1996. Computational fluid dynamics: An analytical tool for the 21st century swimming scientist, Journal q/'Swimming Research, 1 I, 4-22.
  • 2Bixler, B. and Riewald, S., 2002. Analysis of swimmer's hand and arm in steady flow conditions using computational fluid dynamics, .I. Biomeh.. 35(5): 713-717.
  • 3Bixler, B., Pease, D. and Fairhurst, F., 2007. The accuracy of computational fluid dynamics analysis of the passive drag of a male swimmer, Sports Biomech., 6(I): 81 98.
  • 4Clarys, J. P., 1978. Relationship of human form to passive and active hydrodynamic drag, Biomechanics VI-B University Park Press, Baltimore, 120-125.
  • 5Hou, Z. M., 1983. Analysis of the component of hydrodynamics drag in swimming, Proceedings of the 4th National Academic Communication Conference of Biomechanics in Sports, Chengdu, 5-17.
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  • 7Lyttle, A., Blanksby, B., Elliott, B. and Lloyd, D., 1998. The effect of depth and velocity on drag during the streamlined guide, Journal of Swimming Research, 13, 15-22.
  • 8Marinho, D. A., Reis, V. M., Alves, F. B., Vilas-Boas, J. E, Machado, L., Silva, A. J. and Rouboa, A. I., 2009. Hydrodynamic drag during gliding in swimming, d. Appl. Biomeeh., 25(3): 253-257.
  • 9Minetti, A. E., Machtsiras, G. and Masters, J. C., 2009. The optimum finger spacing in human swimming, J. Biomech., 42(13): 2188-2190.
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China Ocean Engineering
2015年 第2期

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