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低雷诺数下二维圆柱涡激运动数值模拟

发表时间:2009-09-15  浏览量:44248  下载量:21895
全部作者: 梁亮文,万德成
作者单位: 上海交通大学船舶海洋与建筑工程学院,海洋工程国家重点实验室
摘 要: 对弹性支撑刚性二维圆柱涡激运动问题进行数值模拟,分析低雷诺数情况下圆柱涡激运动的响应特性,观测得到圆柱涡激运动响应的“拍击(beating)”和“锁定(lock-in)”现象。同时,对不同质量比和不同阻尼因子情况下弹性支撑刚性圆柱涡激运动问题进行计算,并分析了质量比—阻尼组合参数对圆柱涡激运动响应特性的影响。
关 键 词: 计算流体力学;圆柱绕流;涡激运动;流固耦合
Title: Numerical analysis of vortex-induced motion of a 2D circular cylinder in cross-flow with low Reynolds numbers
Author: LIANG Liangwen, WAN Decheng
Organization: State Key Laboratory of Ocean Engineering, School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University
Abstract: In this paper, the numerical analysis of the vortex-induced motion of an elastically mounted circular cylinder in cross-flow with low Reynolds numbers is presented. The phenomena of lock-in and beating are observed. The effect of mass ratio and mass-damping parameter on the dynamic response of the vortex-induced motion of the solid cylinder is also taken into account, and the results show that the combined parameter of mass ratio and mass-damping plays an important role on the response of vortex-induced motion of the cylinder.
Key words: computational fluid dynamics; flow around circular cylinder; vortex-induced motion; fluid-structure interaction
发表期数: 2009年9月第17期
引用格式: 梁亮文,万德成. 低雷诺数下二维圆柱涡激运动数值模拟[J]. 中国科技论文在线精品论文,2009,2(17):1754-1765.
 
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