Collapse and Impact of Cavitation Clouds in the Wake of a Circular Cylinder
Details
In actual flow fields, the cavitation takes the form of the cavitation cloud. It is known that the cavitation cloud causes high impact. The cavitation becomes a vortex type of cavitation cloud in the wake of an obstacle such as a circular cylinder. In this study, collapsing behaviors of cavitation clouds in the wake of a circular cylinder are investigated using a high-speed video camera or a digital still camera. An impulsive pulse acts as a trigger of those observations. In the case of observations using the still camera, double-exposure photographs of cavity behaviors are taken using blue and red flashes.
