介质阻挡放电等离子体对NACA0015翼型流动控制的PIV实验研究  

PIV measurement of dielectric barrier discharge plasma flow control on NACA0015 airfoil

作　　者：王万波[1] 黄勇[1] 黄宗波[1] 张鑫[1] 王勋年[1] 沈志洪[1] 

机构地区：[1]中国空气动力研究与发展中心,四川绵阳621000

出　　处：《实验流体力学》2012年第2期1-5,共5页Journal of Experiments in Fluid Mechanics

摘　　要：采用粒子图像测速(Particle Image Velocimetry,PIV)技术,研究了介质阻挡放电等离子体激励对NA-CA0015翼型表面流动分离的控制特性。通过风洞实验,研究了电极电压、电极位置和布置方式等参数对翼型分离控制的影响规律,并初步分析了等离子体流动控制机理。结果表明等离子体激励在失速迎角附近可以有效抑制翼型的流动分离,实现气流的完全再附着;在来流速度为20m/s时,将气流再附着的迎角提高了5°。Particle image velocimetry（PIV） technology was applied to investigate the flow separation control around the NACA0015 airfoil by dielectric barrier discharge（DBD） plasma actuator.To study the flow control effect,electrode voltage,electrode position and arrangement were investigated.In addition,the mechanism of plasma flow control was preliminarily analyzed.The results show that the leading edge plasma control can prevent the flow separation and make the flow fully reattach to the upside surface at the angles of attack near the stall point.Plasma flow control is able to increase the angle of attack of flow reattachment by 5 deg at free-stream velocity of 20m/s.

关 键 词：介质阻挡放电 等离子体 流动控制 粒子图像测速 风洞实验 

分 类 号：O357.41[理学—流体力学]