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Shock and Vibration
Volume 2016, Article ID 5298687, 10 pages
http://dx.doi.org/10.1155/2016/5298687
Research Article

Vortex-Induced Vibration Suppression of a Circular Cylinder with Vortex Generators

1Key Lab of Structures Dynamic Behavior and Control, Harbin Institute of Technology, Ministry of Education, Heilongjiang, Harbin 150090, China
2School of Civil Engineering, Harbin Institute of Technology, Harbin 150090, China
3College of Architecture and Civil Engineering, Xi’an University of Science and Technology, Xi’an 710054, China

Received 30 November 2015; Revised 24 May 2016; Accepted 9 June 2016

Academic Editor: Carlo Trigona

Copyright © 2016 Shi-bo Tao et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The vortex-induced vibration is one of the most important factors to make the engineering failure in wind engineering. This paper focuses on the suppression method of vortex-induced vibration that occurs on a circular cylinder fitted with vortex generators, based on the wind tunnel experiment. The effect of the vortex generators is presented with comparisons including the bare cylinder. The experimental results reveal that the vortex generators can efficiently suppress vortex-induced vibration of the circular cylinder. Vortex generator control can make the boundary layer profile fuller and hence more resistant to separation. The selections of skew angles and the angular position have a significant influence on the vortex generator control effect. By correlation analysis, it can be concluded that the vortex generators can inhibit the communication between the two shear layers and produce streamwise vortices to generate a disturbance in the spanwise direction.