Abstract
There are many observations of cavitating flow using a high-speed video camera. They give us instantaneous and spatial images of cavitation clouds and surrounding small bubble behavior. In this study, we show some cavitation clouds behaviors using a high-speed video camera with an image analysis in order to estimate the behavior quantitatively. Especially, We show good advantages of frame difference method to analyze the behavior related to cavitating flow with small bubbles: e.g. growing and collapsing behavior of cavitation clouds and pressure wave propagation.
