1713 超音速流中に配置されたDC放電プラズマアクチュエータ周辺の圧力場(OS17-3 超音速流と衝撃波,オーガナイズドセッション)

概要

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Characteristics of a plasma actuator driven by direct-current discharge were studied experimentally in a supersonic flow. The discharge is generated between two small pin electrodes mounted on a Laval nozzle wall with a circle constant cross-sectional area in a Mach 3 flow. Current and voltage measurements indicated the generation of the discharge at low power consumption. It was confirmed that the wall static pressure increased beside each electrode and decreased just behind the anode for a 100 mA discharge. Furthermore, the increase in stagnation pressure and Mach number was observed close to the electrode surfaces. It was suggested that Joule heating of the flow and enthalpy elevation led to the change in the static and the stagnation pressure.
2010-10-29