流れの能動制御のためのマイクロプラズマアクチュエータの効率評価(反応・多相系電磁(2),一般講演)

概要

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We establish the fabrication procedure of mm-size plasma actuators through MEMS process. The flow induced by three differently-sized actuators is measured by laser Doppler velocimetry in order to clarify the size effects on the actuator performance. The dependency of the induced velocity on the imposed voltage is found in agreement with previous work. It is shown that there exists the optimal frequency to drive a flow in contrast to the reported studies. In the measurement of the flow field, strong suction as well as blowing near the actuator is found in accordance with conventional large plasma actuators. The efficiency of plasma actuator is enhanced significantly through miniaturization. These results show that the micro plasma actuator is promising for various flow controls, particularly, to turbulent flows where small-scale structures should be directly manipulated.
2009-09-02