3D Numerical Simulation Analysis of Passive Drag near Free Surface in Swimming

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） me...

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Bibliographic Details
Published inChina ocean engineering Vol. 29; no. 2; pp. 265 - 273
Main Author 詹杰民 李天赠 陈学彬 李毓湘 韦永康
Format Journal Article
LanguageEnglish
Published Heidelberg Chinese Ocean Engineering Society 01.04.2015
Subjects
Coastal Sciences
Engineering
Fluid- and Aerodynamics
Marine & Freshwater Sciences
Numerical and Computational Physics
Oceanography
Offshore Engineering
Simulation
Technical Notes
三维数字模型
不可压缩Navier-Stokes方程
拖曳体
数值模拟分析
游泳
自由表面
计算机辅助工业设计
近水面
swimming
VOF method
numerical simulation
passive drag
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ISSN0890-5487
2191-8945
DOI10.1007/s13344-014-0080-x

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Summary: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.
Bibliography:32-1441/P
swimming passive drag VOF method numerical simulation
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.
ISSN:0890-5487
2191-8945
DOI:10.1007/s13344-014-0080-x