Researching on aerodynamic noise sources identification technology in anechoic wind tunnel

The kinds of newstyle plasma flow controllers have been designed to control flow actively according to the behavior of the directional air flow induced by DBD (Dielectric Barrier Discharge) plasma in still air. The desired flow structures have been obtained by organizing the directional flow induced by DBD plasma through arranging electrodes in the controllers purposefully. The flow fields induced by the new style plasma active flow controllers have been investigated visibly and measured by PIV. The experiment shows that the required structure of the induced flow can be realized through designing newstyle plasma flow controllers reasonably to control flow actively. The research results provide a novel flow controller without flow source for active flow control.