Experimental Investigation of the Influence of the DC-corona Wind and DC-DBD Plasma Actuator on the Behavior of the Boundary Layer

Nowadays, AC-current plasma actuators are more preferred to the DC-current plasma actuators in active flow control. So far, almost no research work has been done on DC-current plasma actuator. In this paper, using a direct current power supply and different geometries, plasma characteristics of the both corona and DBD, were studied. Using the results of this study, it was found that the induced flow of the DC current corona is weaker than that caused by AC-current ones, and it has perpendicular components to the flow direction. Also, the induced flow of the DBD actuators is stronger than the corona ones.