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Citation:
　CHEN Hai-long*,DAI Shao-shi,LI Jia and YAO Xiong-liang.Three-dimensional numerical simulation of the flow past a circular cylinder based on LES method[J].Journal of Marine Science and Application,2009,(2):110-116.
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Three-dimensional numerical simulation of the flow past a circular cylinder based on LES method

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Title:
Three-dimensional numerical simulation of the flow past a circular cylinder based on LES method
Author(s):
CHEN Hai-long*;  DAI Shao-shi;  LI Jia and YAO Xiong-liang
Affilations:
Author(s):
CHEN Hai-long*;  DAI Shao-shi;  LI Jia and YAO Xiong-liang
College of Shipbuilding Engineering, Harbin Engineering University, Harbin 150001, China
Keywords:
LES method;  three-dimensional flow past circular cylinder;  hydrodynamic characteristics
分类号:
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DOI:
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Abstract:
The hydrodynamic characteristics of a rigid, single, circular cylinder in a three dimensional, incompressible, uniform cross flow were calculated using the large-eddy simulation method of CFX5. Solutions to the three dimensional N-S equations were obtained by the finite volume method. The focus of this numerical simulation was to research the characteristics of pressure distribution (drag and lift forces) and vortex tubes at high Reynolds numbers. The results of the calculations showed that the forces at every section in the spanwise direction of the cylinder were symmetrical about the middle section and smaller than the forces calculated in two dimensional cases. Moreover, the flow around the cylinder obviously presents three dimensional characteristics.

References:

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Last Update: 2010-04-23