溝付きキャビティ流れでの共鳴音の抑制

抄録

It is known that when the wind flows at the upper part of the cavity at high speed, a resonance sound is generated in the cavity. We found that resonance sound was derived from the position of the groove aligned at the bottom of the cavity on the surface of rotating body. For this phenomenon, the flow characteristics in the cavity at a time when resonance sound was generated were clarified, and the shape of the cavity which did not generate the resonance were investigated. This paper describes some of the results of the investigation based on a CFD(Computational Fluid Dynamics) analysis.