抄録
Behavior of oscillating bubble (s) is of great importance for application under microgravity environment; boiling heat transfer in high performance heat exchanger, removing process of bubbles in material manufacturing, etc. In the present study, shape oscillation of single bubble and its interaction among multiple bubbles under ultrasonic vibration are focused. Through the observation with the high-speed camera, dynamic behaviors of the bubble exhibiting a transition from radial volume oscillation to shape oscillation and the preferable mode number of the shape oscillation were successfully detected.