Experimental research on properties of vortex-induced vibration for cylinders with vortex generators

被引：0

作者：

Tao S. ^{[1
,2
]}

Liu D. ^{[1
,2
]}

Tang A. ^{[3
]}

机构：

[1] School of Civil Engineering, Jilin Jianzhu University, Changchun

[2] Science and Technology Innovation Center for Structure and Earthquake Resistance of Jilin Province, Changchun

[3] School of Civil Engineering, Harbin Institute of Technology, Harbin

来源：

Huazhong Keji Daxue Xuebao (Ziran Kexue Ban)/Journal of Huazhong University of Science and Technology (Natural Science Edition) | 2019年 / 47卷 / 02期

关键词：

Flow around a circular cylinder; Flow control; Vortex generator; Vortex-induced vibration; Wind tunnel experiment;

D O I：

10.13245/j.hust.190203

中图分类号：

学科分类号：

摘要：

Triangular vortex generators with different configurations, wind inclined angles and wind attack angles were adopted to study the control effects on vortex-induced vibration for the cylinder, based on the wind tunnel experiment. The experimental results reveal that vortex generator can shorten the locking interval of cylindrical vortex-induced vibration and reduce the amplitude of vortex-induced vibration. The selection of wind deflection Angle and wind attack Angle has a great influence on the control effect. When the wind attack angle is 70°, the control effect is best. Even if the vortex generator is set at a distance from the separation point, it can play a better control role on the boundary layer. The vortex generator delays the separation of boundary layer on the cylinder surface, and the influence of the three-dimensional characteristics of the convection field is manifested in reducing the cross-correlation of wind pressure on the cylinder surface. © 2019, Editorial Board of Journal of Huazhong University of Science and Technology. All right reserved.

引用

页码：14 / 18

页数：4

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