纳秒脉冲等离子体气动激励控制平板附面层的研究  

Study of the Boundary Layer on a Plate Aerodynamically Excited and Controlled by Using Nanosecond Pulse Plasma

作　　者：岳太鹏[1] 李应红[1] 孙冬[1] 崔巍[1] 

机构地区：[1]空军工程大学工程学院,陕西西安710038

出　　处：《热能动力工程》2011年第5期528-532,629,共5页Journal of Engineering for Thermal Energy and Power

基　　金：国家自然科学基金资助项目(50906100)

摘　　要：为研究纳秒脉冲等离子体气动激励控制平板附面层的作用机理以及不同参数下的变化规律,利用自行研制的速度测量系统对纳秒脉冲等离子体气动激励诱导的气流速度进行了测量,结果表明:不同的激励组合方式下,等离子体气动激励效果不同,介质阻挡放电产生的效果最好;纳秒脉冲等离子体激励诱导气流加速的效果随激励电压的增大而增强,其作用于低速气流的效果强于高速气流;纳秒脉冲等离子体气动激励诱导射流方向与壁面有一定夹角;沿下游方向,等离子体气动激励诱导气流加速效果明显减弱。To study the working mechanism of the boundary layer on a plate aerodynamically excited and controlled by using nanosecond pulse plasma and the law governing its change under different parameters,the speed of air flow aerodynamically excited and controlled by using the nanosecond pulse plasma was measured by utilizing a self-developed velocity measurement system.The measurement results show that under different combined excitation modes,the aerodynamic excitation effectiveness by using the plasma is varied and that produced by using the medium barrier discharge is regarded as the best.That achieved by using the nanosecond plasma to excite and induce the air to accelerate will be enhanced with an increase of the excitation voltage.Its effectiveness played on a low speed air flow is better than that on a high speed air flow.The jet flow direction aerodynamically excited and induced by using the nanosecond pulse plasma forms a certain angle with the wall surface.Along the downstream direction,the air flow acceleration effectiveness aerodynamically excited and induced by using the plasma is weakened obviously.

关 键 词：等离子体气动激励 附面层 诱导 激励组合 介质阻挡放电 

分 类 号：TK121[动力工程及工程热物理—工程热物理]