Flow structures in flat plate boundary layer induced by pulsed plasma actuator

被引：0
作者：
ZHANG PanFeng LIU AiBing WANG JinJun Institute of Fluid Mechanics Beijing University of Aeronautics and Astronautics Beijing ChinaKey Laboratory of Fluid Mechanics Ministry of Education Beijing China [1 ,2 ,1 ,1 ,2 ,1 ,100191 ,2 ,100191 ]
机构：
来源：
Science China(Technological Sciences) | 2010年 / 10期
关键词：
plasma actuator; unsteady actuation; boundary layer; numerical simulation;
D O I：
暂无
中图分类号：
V211.1 [理论空气动力学];
学科分类号：
0801 ; 080103 ; 080104 ;
摘要：
The flow field in the flat plate boundary layer induced by the pulsed plasma actuator was simulated by solving the Navier-Stokes equations with a phenomenological DBD plasma model. The effects of actuation strength,wave form and frequency on the flow structures induced by the unsteady pulsed plasma actuator were investigated. The results indicated that a series of vortex pairs were formed in the boundary layer,and decayed in downstream convection following the exponential law. The strength of vortex pair was dominated by the effective plasma actuation strength,and the vortex streamwise spacing depended on the actuation frequency. If the duty cycle is not so large that interaction of adjacent vortex pairs can be negligible,then the actuation wave form has little influence on the vortex pair induced by the unsteady plasma actuator.
引用
收藏
页码：2772 / 2782
页数：11
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