Numerical Simulation of the Damping Influence on Vortex-Induced Vibration

Abstract:

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 SST 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.

• Periodical: Applied Mechanics and Materials (Volumes 226-228)
• Pages: 146-149
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.226-228.146
• Online since: November 2012
• Authors: Zhong Jun Yin, Yan Shu Cao, Tian Han, Xiao Song Wang
• Keywords: Damping Ratio, Numerical Simulation, Vortex-Induced Vibration (VIV)

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