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Experimental investigations of cavitation-bubble collapse in the neighbourhood of a solid boundary

Published online by Cambridge University Press:  29 March 2006

W. Lauterborn  and
H. Bolle
W. Lauterborn
Affiliation:
Drittes Physikalisches Institut, University of Giittingen, West Germany
H. Bolle
Affiliation:
Drittes Physikalisches Institut, University of Giittingen, West Germany
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Abstract

Cavitation bubbles were produced by focusing giant pulses of a Q-switched ruby laser into distilled water. The dynamics of the bubbles in the neighbourhood of a solid boundary were studied by means of high-speed photography using a rotating-mirror camera with framing rates of up to 300000 frame/s. Bubble motion was evaluated from the frames with the aid of a digital computer using a graphical input device. Smoothed distance-time curves of different portions of the bubble wall were obtained also, allowing a reliable calculation of bubble-wall velocities (except at the actual instant of collapse). One of the numerical examples of the collapse of a spherical bubble near a plane solid boundary obtained by Plesset & Chapman could be realized experimentally. A comparison of the bubble shapes shows good agreement.

Type
Research Article
Information
Journal of Fluid Mechanics , Volume 72 , Issue 2 , 25 November 1975 , pp. 391 - 399
Copyright
© 1975 Cambridge University Press

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