Numerical Simulation of the Damping Influence on Vortex-Induced Vibration
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-ω 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.
Vortex-Induced Vibration Numerical Simulation Damping Ratio
Zhongjun Yin Yanshu Cao Tian Han Xiaosong Wang
School of Mechanical Engineering University of Science and Technology Beijing,Beijing 100083,China
国际会议
上海
英文
146-149
2012-10-19（万方平台首次上网日期，不代表论文的发表时间）