超音速内部流路における衝撃波干渉を伴うキャビティ流れ

抄録

In this paper, we describe the flow structure of a cavity interacting with a normal shock wave in a supersonic duct. The position of the normal shock wave and the bleed inside the cavity are focused on. Experiments are conducted at Mach number M=1.58. Time-averaged and unsteady pressures are measured and the flows are visualized by the schlieren and the oil flow techniques. The characteristics of the cavity flow with a shock wave interaction, namely, a shock system around the cavity and the separation in the interacting region are recognized. The bleed inside the cavity stabilizes the normal shock wave.