Abstract
Cavitation cloud shows an unsteady periodic behavior and causes high impact. The periodicity of cavitation cloud shedding can be related to a reentrant motion and formation of pressure waves. A pattern of reentrant motion is dependent on re-circulating flow as well as pressure wave due to collapse of shedding clouds. In this study, we present some shedding patterns of cavitation cloud and the role of pressure wave accompanied with cloud collapse using an image analysis method.