Numerical Simulation of the Damping Influence on Vortex-Induced Vibration

被引：0
|
作者：
Yin, Zhongjun [1 ]
Cao, Yanshu [1 ]
Han, Tian [1 ]
Wang, Xiaosong [1 ]
机构：
[1] Univ Sci & Technol Beijing, Sch Mech Engn, Beijing 100083, Peoples R China
来源：
VIBRATION, STRUCTURAL ENGINEERING AND MEASUREMENT II, PTS 1-3 | 2012年 / 226-228卷
关键词：
Vortex-Induced Vibration; Numerical Simulation; Damping Ratio;
D O I：
10.4028/www.scientific.net/AMM.226-228.146
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The main purpose of the numerical simulation that described in this paper is to investigate the damping influence on vortex-induced vibration (VIV) system. By considering different damping ratios, the 1-dof vortex-induced vibration of a rigid cylinder with low mass ratio is investigated numerically by the RANS solver combined with SSTk-omega turbulence model. Comparing of the simulation results that obtained under low damping ratio by J.S. Wang and experimental results which carried out by Williamson and Govardhan, it indicates that the computing model in this paper is reliable. In addition, by using our model we analyze the vibration under the other two damping ratios, including the corresponding amplitude response and frequency response. We observed significant frequency locking phenomenon under different damping conditions, and locking region decreases with increasing damping.
引用
收藏
页码：146 / 149
页数：4
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