关键词: 等离子体;诱导气流;PIV测速;诱导推力

Abstract: The velocity distribution and flow pattern of the induced flow on the surface and in the downstream of the plasma actuator were obtained by PIV technique in the still air and the induced thrust produced by the flow also was measured with an electronic balance. The mechanism of the induced flow on the actuator surface was investigated. The effect on accelerating the induced flow by the electrode number was compared with the induced thrust measured. The results show that the air flow induced on the plasma actuator is directional to form a jet in the downstream edge of the actuator and the flow is gradually accelerated by the electrodes parallel in both side of the actuator.Both the jet velocity and the induced thrust increase with adding electrode number.

Key words: Plasma; Induced flow; PIV; Induced thrust