だ円柱まわりのキャビテーション流れの非定常特性

抄録

Experimental investigations on the unsteady cavitating flow around an elliptic cylinder of axis ratio 3 : 1 were carried out for several angles of attack and a wide range of cavitation numbers. The flow characteristics were studied by measuring the fluid force and the pressure fluctuation. Under non cavitating conditions, a dramatic change of flow state was observed in the critical Reynolds number regime. This change of flow state has a great influence on the unsteady characteristics of cavitating flow.