プラズマアクチュエータを利用したステップを越える流れの制御

抄録

This study covers the flow over a step object in order to clarify the effect of the generated vortex by the plasma actuator on the flow control features. A dielectric barrier discharge (DBD) plasma actuator is mounted on the surface of the step front edge and driven with a periodic on and off mode (burst drive). The pressure on the step surface and velocity field around the step were measured. In consequence, the surface pressure varies with the burst frequency and it recovers toward upstream at a certain frequency. Also, the position of the reattachment on the step surface changes.