Numerical Simulation of Two-Degree-of-Freedom Vortex-Induced Vibration of a Circular Cylinder Between Two Lateral Plane Walls in Steady Currents

被引：53
|
作者：
Zhao, Ming [1 ]
Tong, Feifei [2 ]
Cheng, Liang [2 ]
机构：
[1] Univ Western Sydney, Sch Comp Engn & Math, Penrith, NSW 2751, Australia
[2] Univ Western Australia, Sch Civil & Resource Engn, Crawley, WA 6009, Australia
来源：
JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME | 2012年 / 134卷 / 10期
关键词：
VERY-LOW MASS; FORCES; DYNAMICS; MOTIONS; MODE;
D O I：
10.1115/1.4007426
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Vortex-induced vibration (VIV) of a circular cylinder at a low mass ratio of 1.5 between two lateral walls is investigated numerically. The focus of the study is to examine the effects of the two lateral walls on the VIV. Numerical simulations are carried out for w/D = 4, 6, 10, and 20 with D and w being the cylinder diameter and the distance between the two walls, respectively. It is found that the effects of the two walls on the VIV are obvious as w/D <= 6 and negligibly small as w/D = 10. The VIV amplitudes in both x- and y-directions increase with the increasing w/D in the lock-in regime. [DOI: 10.1115/1.4007426]
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页数：5
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