| Numerical Investigation of Vortex-induced Vibrations for Flow past a Circular Cylinder |
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| 作者姓名： | WANG Guoxing WANG Shuqing LI Huajun |
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| 作者单位： | Institute of Coastal and Offshore Engineering, College of Engineering, Ocean University of China,Qingdao 266071, P. R. China |
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| 基金项目： | 中国科学院资助项目;山东省自然科学基金 |
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| 摘 要： | The objective of the present investigation is to study the vortex-induced vibrations （VIV） for flow past a circular cylinder. The turbulent flow is simulated by using a 2-D standard k-ε model incorporating the finite volume method （FVM） and the Semi-Implicit Method for the Pressure Linked Equations （SIMPLE） algorithm on non-orthogonal boundary-fitted collocated grids. The wall boundaries are approximated with wall functions. In the numerical cases, the turbulent wake patterns are studied by plotting the streamlines and the turbulent kinetic energy contours. The pressure distributions are investigated. Analyses of the vortex-induced force coefficients and the structural vibrations are carried out. The variations of the Strouhal number with the Reynolds number and of the vortex-induced force coefficients with the reduced velocity are obtained. The results show that this numerical approach is feasible and efficient in investigating the VIV problem for a circular cylinder.
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| 关 键 词： | standard k-ε model |
| 收稿时间： | 2005-09-05 |
| 修稿时间： | 2005-12-19 |
Numerical investigation of vortex-induced vibrations for flow past a circular cylinder |
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| WANG Guoxing WANG Shuqing LI Huajun.Numerical Investigation of Vortex-induced Vibrations for Flow past a Circular Cylinder[J].Journal of Ocean University of China,2006,5(2):174-180. |
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| Authors: | Wang Guoxing Wang Shuqing Li Huajun |
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| Institution: | Institute of Coastal and Offshore Engineering, College of Engineering, Ocean University of China,Qingdao 266071, P. R. China |
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| Abstract: | The objective of the present investigation is to study the vortex-induced vibrations (VIV) for flow past a circular cylinder.
The turbulent flow is simulated by using a 2-D standardk-ɛ model incorporating the finite volume method (FVM) and the Semi-Implicit Method for the Pressure Linked Equations (SIMPLE)
algorithm on non-orthogonal boundary-fitted collocated grids. The wall boundaries are approximated with wall functions. In
the numerical cases, the turbulent wake patterns are studied by plotting the streamlines and the turbulent kinetic energy
contours. The pressure distributions are investigated. Analyses of the vortex-induced force coefficients and the structural
vibrations are carried out. The variations of the Strouhal number with the Reynolds number and of the vortex-induced force
coefficients with the reduced velocity are obtained. The results show that this numerical approach is feasible and efficient
in investigating the VIV problem for a circular cylinder. |
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| Keywords: | vortex-induced vibration finite volume method wall functions |
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