摘要：Numerical simulations of WIV (wake induced vibration) for tandem cylinders with different diameter ratio in the impingement regime are performed for a low Reynolds number of Re = 150 and low mass ratio of m* = 2.0. Five different diameter ratios of d/D = 1/2, 3/4, 1, 4/3, and 3/2 are examined, in order to identify the effects of diameter ratio on 2-DOF (two-degree-of-freedom) vibration responses of the cylinder in the range of 2 1, the hydrodynamic characteristics of the downstream cylinder are mainly controlled by the larger vortices shedding from the upstream cylinder. The downstream cylinder vibrates as the vortex shedding frequency of the larger upstream cylinder and the lock-in phenomenon is absent. WCV significantly increases the risk of fatigue failure of the cylindrical structure.

关键字：WIV; Tandem cylinders; Diameter ratio; Further classified; WCV

ISSN号：0029-8018

卷、期、页：卷: 264

发表日期：2022-11-15

影响因子：3.795000

期刊分区（SCI为中科院分区）：三区

收录情况：SCI（科学引文索引印刷版）,地学领域高质量科技期刊分级目录（国外T1）,EI（工程索引）,SCIE（科学引文索引网络版）

发表期刊名称：OCEAN ENGINEERING

参与作者：宋振华,沈义俊

第一作者：段梦兰,顾继俊

论文类型：期刊论文

论文概要：宋振华,沈义俊,段梦兰,顾继俊，Numerical investigation on the effect of diameter ratio on wake induced vibrations of tandem cylinders，OCEAN ENGINEERING，2022，卷: 264

论文题目：Numerical investigation on the effect of diameter ratio on wake induced vibrations of tandem cylinders