等离子体流动控制研究进展与展望

Progress and outlook of plasma flow control

等离子体流动控制是基于等离子体气动激励的新型主动流动控制技术,具有响应时间短、激励频带宽等显著技术优势,在改善飞行器/发动机空气动力特性方面具有广阔的应用前景,已成为国际上等离子体动力学与空气动力学交叉领域的前沿研究热点。鉴于此,从介质阻挡放电(DBD)、电弧放电等离子体气动激励特性,等离子体气动激励抑制流动分离、控制附面层、控制激波与激波/附面层干扰、控制压气机与涡轮内部流动、控制管道流动和飞行控制等方面,综合评述了国际上等离子体流动控制的研究进展情况;从创新等离子体气动激励方式,揭示等离子体气动激励与复杂流动的非定常耦合机制,突破等离子体流动控制系统关键技术等方面,对未来的发展进行展望。

Plasma flow control is a new type of active flow control technology based on plasma aerodynamic actuation which is advantageous of short reactive time and broad bandwidth.The prospect of plasma flow control on improving aircraft/engine performance has made it a hot topic in the cross field of plasma dynamics and aerodynamics.This paper presents a review of the research progress from the aspects of dielectric barrier discharge（DBD）and arc discharge plasma aerodynamic actuation characteristics,boundary layer control,shock wave control and shock wave/boundary layer interaction control,compressor and turbine flow control,pipe flow and flight control.Also,future development of plasma flow control is looked forward in three aspects,i.e.,innovation of plasma aerodynamic actuation,revealing the unsteady coupling mechanism of plasma aerodynamic actuation and complex flow,as well as breakthrough of the key technology of plasma flow control system.