Three-dimensional instability of an oscillating viscous flow past a circular cylinder

被引：2
|
作者：
Lu Xi-yun
Ling Guo-can
机构：
[1] University of Science and Technology of China,Department of Mechanics and Mechanical Engineering
[2] Chinese Academy of Sciences,State Key Laboratory of Nonlinear Mechanics, Institute of Mechanics
[3] Beijing 100080,undefined
来源：
Applied Mathematics and Mechanics | 2003年 / 24卷 / 7期
关键词：
Navier-Stokes equation; Reynolds number; Keulegan-Carpenter number; Morison equation; O351; 76E09;
D O I：
10.1007/BF02437811
中图分类号：
学科分类号：
摘要：
A systematically numerical study of the sinusoidally oscillating viscous flow around a circular cylinder was performed to investigate vortical instability by solving the three-dimensional incompressible Navier-Stokes equations. The transition from two- to three-dimensional flow structures along the axial direction due to the vortical instability appears, and the three-dimensional structures lie alternatively on the two sides of the cylinder. Numerical study has been taken for the Keulegan-Carpenter (KC) numbers from 1 to 3.2 and frequency parameters from 100 to 600. The force behaviors are also studied by solving the Morison equation. Calculated results agree well with experimental data and theoretical prediction.
引用
收藏
页码：791 / 800
页数：9
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