Numerical Simulation for Vortex Shedding Induced Vibration of Cylinder Array

王沣浩 1; 姜歌东 2; 孟祥兆 1; 罗昔联 1

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Numerical Simulation for Vortex Shedding Induced Vibration of Cylinder Array

更新时间：2025-12-08

- Numerical Simulation for Vortex Shedding Induced Vibration of Cylinder Array
- Vol. 41, Issue 7, Pages: 870-874(2007)
- 作者机构：
  
  西安交通大学人居环境与建筑工程学院,西安,710049
- 作者简介：
- 基金信息：
- DOI：
  CLC： O357.1;O357.4
- Online First：10 July 2007，
  
  Published：2007
- 稿件说明：
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王沣浩 1, 姜歌东 2, 孟祥兆 1, et al. Numerical Simulation for Vortex Shedding Induced Vibration of Cylinder Array[J]. 2007, 41(7): 870-874.
DOI：

王沣浩 1, 姜歌东 2, 孟祥兆 1, et al. Numerical Simulation for Vortex Shedding Induced Vibration of Cylinder Array[J]. 2007, 41(7): 870-874. DOI：

摘要

基于表面涡方法和流固耦合模型

研究了雷诺数为 2.67×10

时的单列圆柱流体诱导振动问题

并计算了涡云图、流体力、振动响应、涡脱落频率等.计算模拟结果很好地重现了刚性单列圆柱在小间隙比(1.5)下以宽、窄尾涡交替和多频为特征的非均匀流态

以及间隙比为2.0时的涡脱落现象.此外

还研究了单列自由振动的弹性圆柱在间隙比为 2.0时的流体诱导振动问题

结果表明:在大振幅条件下

流体诱导力在x方向和y方向有较强烈的耦合; 随着振幅的减小

x方向振动对y方向振动的影响可以忽略

可采用单自由度的动力学模型假设进行计算.

Abstract

The cross-flow induced vibration of a row of cylinders at sub-critical Reynolds number Re=2.67×10

is simulated based on surface vorticity method and a fluid-structure interaction model incorporating the effects of cylinder motions and displacements. The computational results of the vorticity map

fluid force

vibration response

and shedding frequency are presented. The non-uniform flow behind a rigid cylinder row with a small pitch ratio T/D=1.5 is characterized by narrow and wide near wakes and multiple frequencies

and the vortex shedding behind a rigid cylinder row with T/D=2.0 is replicated properly by the simulation results. Furthermore

the flow induced vibration of a flexible cylinder row with T/D=2.0 is also investigated. The numerical results show that the coupling between x- and y-direction occu

rs obviously for large-amplitude vibration

and declines rapidly with the reduced vibration amplitude to be expected to choose single DOF dynamic model for the flow-induced vibration of a cylinder row.

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references

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Liu Y, So R M C, Lau Y L, et al. Numerical studies of two side-by-side elastic cylinders in a cross-flow [J]. Journal of Fluids and Structures, 2001, 15(7): 1009-1030.

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王沣浩,姜歌东,罗昔联.一种基于表面涡方法的流体诱导管束振动计算模型[J].西安交通大学学报, 2006, 40(9): 1109-1113.

Wang Fenghao, Jiang Gedong, Luo Xilian. A flow induced vibration model based on grid-free surface vorticity method [J]. Journal of Xi'an Jiaotong University, 2006, 40(9): 1109-1113.

王沣浩,姜歌东,罗昔联.高雷诺数下双圆柱绕流诱发振动的数值模拟[J].西安交通大学学报, 2007, 41(1): 101-105.

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Zdravkovich M M. Flow around circular cylinders-a comprehensive guide through flow phenomena, experiments, applications, mathematical models, and computer simulations: Vol 2 [M]. New York: Oxford University Press Inc., 2003.

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