24th Congress of International Council of the Aeronautical Sciences, 29 August-3, September 2004, Yokohama, Japan
Paper ICAS 2004-3.9.2

ACTIVE SEPARATION CONTROL WITH LONGITUDINAL VORTICES GENERATED BY THREE TYPES OF JET ORIFICE SHAPE

H. Hasegawa, M. Fukagawa*, K. Matsuuchi**
Akita University; *Fuji Heavy Industry Ltd.; **University of Tsukuba, Japan

Keywords: boundary layer, jet, separation, longitudinal vortex, active control

In this study, the suppression effect of the jet orifice shape with non-circular orifices is investigated to make more effective the active separation control system. The triangular orifice makes strong the vorticity of longitudinal vortices and effective the pressure recovery in the diffuser in comparison with the other orifice shapes.

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