Abstract
An experimental study is performed for a channel flow with the dielectric barrier discharge plasma actuator (DBD-PA). The plasma actuator is an electric device designed for flow control using electrohydrodynamic effect. A very thin jet flow can be induced by the plasma actuator, and it has no moving parts, simple structure and high frequency response. The actuator is installed in the bottom of a channel passage. The wall static pressure is measured in the upper wall of the channel. The Reynolds number based on hydraulic diameter is varied from 600 to 7000. The velocity profiles are measured by a PIV system at the Reynolds number of 2000. The result shows that the pressure loss decreases by the effect of induced flow with the plasma actuator. The effect is remarkable in the laminar flow region.
