Numerical simulation of a fixed and an oscillating circular cylinder in oscillatory flow

被引：0
|
作者：
Siqueira, CLR [1 ]
Meneghini, JR [1 ]
Saltara, F [1 ]
机构：
[1] Univ Sao Paulo, BR-05508 Sao Paulo, Brazil
来源：
PROCEEDINGS OF THE EIGHTH INTERNATIONAL OFFSHORE AND POLAR ENGINEERING CONFERENCE, VOL 3 | 1998年
关键词：
vortex shedding; flow induced vibration; oscillatory flow;
D O I：
暂无
中图分类号：
U6 [水路运输]; P75 [海洋工程];
学科分类号：
0814 ; 081505 ; 0824 ; 082401 ;
摘要：
The proposed paper aims to present a parametrical analysis via CFD (Computational Fluid Dynamics) of the drag amplification factor of a cylinder in a current superposed to an in-line oscillatory velocity. Numerical simulations based on a two-dimensional discrete vortex method with viscous diffusion have been carried out in order to obtain the drag amplification factor against U(0)/U(1) (the relation between the uniform velocity U(0) and the oscillatory-velocity amplitude U(1)) for various values of KC (the Keulegan-Carpenter number). Furthermore, the oscillatory flow superposed to a current when the cylinder is free to oscillate transversely is analysed.
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页码：364 / 371
页数：2
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