Robert Mettin: abstract ESS7

High speed observation of acoustic cavitation bubbles

R. Mettin, S. Luther, P. Koch, and W. Lauterborn

Drittes Physikalisches Institut, Universität Göttingen,
Bürgerstraße 42-44, D-37073 Göttingen, Germany


Abstract

Acoustically induced cavitation at 20 kHz is observed by means of high speed video recording. Using digital image processing the bubbles' trajectories are investigated. The data reveals a complicated near field interaction between the bubbles. A dominant phenomenon is the collision and coalescence of bubbles, even in the relatively sparse populated streamers.


in: Proceedings of the 7th Meeting of the European Society of Sonochemistry (ESS7),
Biarritz-Guéthary, France, 14-18 May 2000, pp. 31-32.


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