锯齿等离子体气动激励器放电特性与加速效应

为研究新型布局的锯齿等离子体气动激励器的放电特性与加速效应,在常规大气环境下测量了不同激励参数下的频率—放电电压—放电电流—电源电流以及等离子体气动激励器诱导的边界层速度。结果表明:与常规布局等离子气动激励器相比,布局形式改变后谐振频率保持不变,放电电压相差不大,但放电电流变小,消耗的功率变小;诱导速度与激励电压呈近线性关系变化,速度值较常规布局小,其尖端放电诱导的气流对流场的扰动影响有待进一步的研究;实验还发现锯齿等离子体气动激励器放电时离子流对绝缘材料有很强的破坏作用。

Discharge Characteristic and Acceleration Effect of Different Configuration Plasma Aerodynamic Actuators

Experimental Investigation on discharge characteristic and acceleration effect of different Configuration plasma Aerodynamic actuator has made it is possible to offer Experimental date for optimum design. In order to study the characteristic of the new configuration plasma aerodynamic actuator, Under normal atmosphere environment, Experimental Investigation on sawtooth plasma Aerodynamic actuator is done, frequency-discharge voltage-discharge current-power current and the boundary velocity induced by the plasma Aerodynamic actuator were measured under different motivation parameters. The experimental results indicate that after the configuration changed , discharge voltage have insignificant alteration, discharge current decreased, and consumed power decreased when compared with the normal; and it's induced velocity approximately linear changed with the motivate voltage, the velocity value less than the normal configuration's, however, the effect on flow field by the induced velocity from the tip needs further investigation; it's also discovered that the ion flow produced by sawtooth plasma Aerodynamic actuator has significant damage effect to insulation materials.