A-7 プラズマアクチュエータ及びファイバグレーティングセンサを用いた剥離流れの能動制御(空力・プラズマアクチュエータ,一般講演)

概要

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Instrumentation and control of flow separation over a NACA0024 airfoil have been investigated using dielectric barrier discharge plasma actuators (DBD-PA) and fiber Bragg grating flow sensor (FBG-FS) at Reynolds numbers 1.25x10^4 < Re < 5.0x10^4 in an open-circuit blower type wind tunnel with 200mm×200mm×600mm test section. The DBD-PAs made of 125 μm thick polyimide film sandwiched by copper electrodes (thickness = 35 μm) are placed at the leading edge and 25% of chord length of the airfoil and tangential flows in the range of the maximum flow speed, 0.1 < u_<j-max> < 1.0 m/s, are induced near the surface. Separation flow controls under angles of attack of α = 8, 12, and 16 degrees are successful at several conditions of u_<j-max>. FBG-FS to construct feedback control system with DBD-PA has also been examined for feasibility tests to detect flow separation.
2011-07-06