プラズマアクチュエータを用いた後向きステップ流れの制御に関する実験的研究(流れの制御(2),一般講演)

概要

論文の詳細を見る
Flow control of backward-facing step flows with Dielectric-Barrier-Discharge Plasma Actuator (DBDPA) which was mounted horizontally on the vicinity of the step edge were studied experimentally. Wind tunnel experiments were done under Reynolds number of Re=UH/v=4.0〜6.7×10^4, where U: inlet mean velocity of 30〜50m/s, H: step height of 20mm and v: kinematic viscosity, respectively. In order to investigate the backward-facing step reattachment flows, oil flow visualizations and hot-film measurements and also wall static pressure measurements were done. A pulse modulated control (10% duty) of DBDPA with a fundamental frequency of shear layer of 800Hz brings reduction of reattachment length of 9% at U=50m/s, and 16% at U=30m/s against that of No-control case, respectively.
日本流体力学会の論文
2010-09-09