Numerical Simulation Study on a Passive Jet Flow Control Method to Suppress Unsteady Vortex Shedding from a Circular Cylinder

被引：1
|
作者：
Chen, Wenli [1 ,2 ]
Wang, Xiangjun [1 ]
Xu, Feng [3 ]
Li, Hui [1 ]
Hu, Hui [2 ]
机构：
[1] Harbin Inst Technol, China Key Lab Structures Dynam Behav & Control, Minist Educ, Harbin 150090, Heilongjiang, Peoples R China
[2] Iowa State Univ, Dept Aerosp Engn, Ames, IA 50011 USA
[3] Harbin Inst Technol, Shenzhen Grad Sch, Sch Civil & Environm Engn, Shenzhen 518055, Peoples R China
来源：
FLUID-STRUCTURE-SOUND INTERACTIONS AND CONTROL | 2016年
关键词：
Circular cylinder; Vortex shedding; Jet; Flow control; Numerical simulation;
D O I：
10.1007/978-3-662-48868-3_70
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
A passive jet flow control method for suppressing unsteady vortex shedding from a circular cylinder via a numerical simulation is presented in this paper. The circular cylinder is wrapped in a hollow pipe. There are a set of the suction/ jet holes on the windward side and leeward side of the outer surface of the pipe. The oncoming flow enters into the hollow pipe through the inlet holes and then blows out from the outlet holes. As a result, the vortex shedding alternately in the wake behind the circular cylinder will be suppressed or destroyed. The reliability of the numerical model without control is first verified by comparison with previous research results. Next, the control effectiveness of this method for the pressure distribution, aerodynamic forces and flow characteristics are discussed for a large range of Reynolds number, Re = 10(3) to 10(5). The results indicate that the proposed control method has a remarkable effect on the aerodynamic forces on the circular cylinder with high Reynolds number.
引用
收藏
页码：441 / 446
页数：6
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