等离子体气动激励改变激波系结构实验研究  

Experimental investigation for structure of the shock waves influenced by the plasma

作　　者：程邦勤[1] 李应红[1] 李军[1] 曹军[1] 王健[1] 苏长兵[1] 

机构地区：[1]空军工程大学工程学院,西安710038

出　　处：《核聚变与等离子体物理》2009年第2期189-192,共4页Nuclear Fusion and Plasma Physics

基　　金：国家自然基金基金资助项目(50776100)

摘　　要：在超音速风洞中进行了等离子体气动激励改变激波系结构的实验,考察了介质阻挡放电和横向直流放电对于激波系结构的影响。实验结果表明介质阻挡放电所产生的等离子体能够影响流场附面层。采用逆气流DBD放电后,激波强度略有增大;采用顺气流放电后,激波强度略有减弱。相对于介质阻挡放电,横向直流放电对减弱激波强度影响稍大。Results of recent experiments on the influence of specially organized electrical discharges on the structure of the shock waves in a supersonic wind tunnel were presented and discussed. Two discharge types were explored： dielectric barrier discharge and transverse DC surface discharge. The results show that the dielectric barrier discharge （DBD） can change the boundary layer. The intension of the shock waves decreases as the discharge obeys the flows. And it increases as the discharge disobeys the flows. In contrast to the dielectric barrier discharge plasma, the shock can be considerably weakened by transverse DC discharge plasma.

关 键 词：等离子体 激波 超音速风洞 介质阻挡放电 直流放电 

分 类 号：V211.3[航空宇航科学与技术—航空宇航推进理论与工程]