%0 Journal Article
%T The numerical study of two-degree-of-freedom vortex-induced vibration of the downstream cylinder in tandem arrangement<br>串列双圆柱绕流下游圆柱两自由度涡致振动研究
%A Chen Wenqu Ren Anlu Li Guangwang
%A <br>陈文曲
%A 任安禄
%A 李广望
%J 力学学报
%D 2004
%I 
%X A numerical study has been conducted into two-degree-of-freedom vortex-induced vibrations of the downstream elastic circular cylinder in tandem arrangement. The results show that (i) the peak value of the displacement of the cylinder for two-degree-of-freedom is larger than that for one-degree-of-freedom as well as the ratio of the frequency for which this maximum occurs; (ii) the lift of the cylinder in a wake is more larger than that in a uniform flow, but the drag behaves contrary; (iii) the response of the displacement of the downstream cylinder is less of "sensitivity" than that of the cylinder in a uniform flow at various natural frequency of the cylinder; (iv) the "beating", that is the response of the oscillating cylinder involves various frequencies, are clearly showed in a wake at various ratio of the frequency from 1.16 to 0.87 but not in the uniform flow. The ALE method is adopted with an H-O type of non-stagger grid incorporating the DDM (domain decomposition method). The N-S equation's convection term and dissipation term are discretized using the third-order upwind compact scheme and the fourth-order central compact scheme, respectively. The motion of the cylinder is modeled by a spring-damper-mass system and solved using the Runge-Kutta method. By simulating the non-linear interaction of the fluid-structure system, we successfully captured the "beating" and "phase switch" phenomena.
%K flow over circular cylinders in tandem arrangement
%K vortex-induced vibration
%K ALE
%K domain decomposition method
%K compact scheme<br>串列双圆柱绕流
%K 涡致振动
%K ALE
%K 分块耦合方法
%K 紧致格式
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=5D344E2AD54D14F8&jid=4100DA4A1A3BA1B0CE5AD99AE1DFB420&aid=F01C1839C3164282&yid=D0E58B75BFD8E51C&vid=933658645952ED9F&iid=B31275AF3241DB2D&sid=20D29EF591CB2C94&eid=0B52E912EAFE3700&journal_id=0459-1879&journal_name=力学学报&referenced_num=1&reference_num=14