摘要
由于介质阻挡放电等离子体气动激励诱导的气流速度及其抑制流动分离的能力难以显著提升,因此研究新的技术途径提高等离子体气动激励抑制流动分离的能力是十分必要的.提出基于冲击气动激励的等离子体冲击流动控制原理,包括冲击激励、涡流控制、频率耦合等内涵,通过理论研究、实验和数值仿真,研究了等离子体冲击气动激励机理,以及等离子体冲击气动激励提高抑制流动分离能力的原理,并在100m/s来流速度下验证了等离子体冲击流动控制原理的有效性.
Since the induced flow velocity and flow separation control capability by dielectric barrier discharge plasma aerodynamic actuation are difficult to be raised remarkably,some new way must be adopted to improve the plasma aerodynamic actuation＇s capability for flow separation control.This paper put forwards a new concept of ＂plasma-shock-based flow control＂,including shock actuation,vortex control and frequency coupling.Through theoretical,experimental and simulational researches,the mechanism of plasma shock aerodynamic actuation and using such actuation to improve flow separation control capability are investigated.The effectiveness of ＂plasma-shock-based flow control＂ was validated at the freestream velocity of 100 m/s.
出处
《科学通报》
EI
CAS
CSCD
北大核心
2010年第31期3060-3068,共9页
Chinese Science Bulletin
基金
国家自然科学基金资助项目(10972236
50906100)
