Shape oscillation of bubbles in the acoustic field

dc.contributor.author	Matsumoto, Keishi
dc.date.accessioned	2009-10-16T18:51:59Z
dc.date.available	2009-10-16T18:51:59Z
dc.date.issued	2009-10-16T18:51:59Z
dc.description.abstract	The authors focus on dynamics of multiple air bubbles exposed to ultrasonic wave while ascending in water. The bubbles are injected into the pool filled with water from a vertical capillary tube, and then the ultrasonic wave of 20 kHz is applied from above toward the bubbles. Volume and shape oscillations of the bubbles are captured by a high-speed camera at frame rates up to 84000 fps with a back-lighting system. In the present study the authors pay their special attention to the shape oscillation and the transition from the volume to the shape oscillations of the bubble. Correlation between the bubble size and the most favorable mode number of the shape oscillation is indicated. In addition, the mechanism of the excitation of the shape oscillation is introduced in this fluid dynamics video.	en_US
dc.identifier.uri	https://hdl.handle.net/1813/14088
dc.language.iso	en_US	en_US
dc.subject	bubble	en_US
dc.subject	shap oscillation	en_US
dc.title	Shape oscillation of bubbles in the acoustic field	en_US
dc.type	video/moving image	en_US

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