Supersonic speed mixing layer active control method

The invention relates to a supersonic speed mixing layer active control method. According to the present invention, disturbance is applied on a supersonic speed mixing layer by using jet flow, and disturbance is continuously applied on the supersonic speed mixing layer by using jet flow induced shock wave, such that the active control on the supersonic speed mixing layer is achieved; preferably the jet flow is generated by using the plasma synthesis jet flow actuator, and can further be generated by using the existing jet flow disturbance device and other devices; and compared to the method inthe prior art, the method of the present invention can solve the problems of low working frequency, low energy density, requirement of the additional gas source and low mixing efficiency of the traditional supersonic speed mixing layer control method. 本发明涉及种超声速混合层主动控制方法。通过利用射流对超声速混合层施加扰动，并利用射流诱导产生的激波对超声速混合层继续施加扰动，实现了对超声速混合层的主动控制。本发明优选的采用等离子体合成射流激励器产生射流，也可以采用现有的射流扰动器等装置产生射流。与现有技术相比，该方法能够解决传统超声速混合层控制方法工作频率低、能量密度低、需要额外气源且掺混