1835 DBDプラズマアクチュエータによる噴流発生の基礎研究(G05-7 流体工学(7)流体デバイス・流体制御,21世紀地球環境革命の機械工学:人・マイクロナノ・エネルギー・環境)

概要

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The present experiment was conducted using a dielectric barrier discharge plasma actuator, DBD-PA. It consists of an upper doughnut shaped electrode and a lower circular electrode, which sandwich the dielectric substance in between. Plasma jet is formed near the inner edge of the upper electrode by applying high voltage between the electrodes at radio frequencies. The initial tangential jet from the peripheral of the circular electrode goes toward the center of it and collapses. As a result, a wall normal jet is formed. The developing process of the wall normal jet and its velocity distribution were examined using particle image velocimetry (PIV) system. Characteristic velocities are found to be proportional to the applied frequency and the voltage. Waveform of the applied voltage was rectangular and the rise time of it was fixed.
社団法人日本機械学会の論文
2008-08-02