Taming Acoustic Cavitation

In this fluid dynamics video we show acoustic cavitation occurring from pits etched on a silicon surface. By immersing the surface in a liquid, gas pockets are entrapped in the pits which upon ultrasonic insonation, are observed to shed cavitation bubbles. Modulating the driving pressure it is possi...

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Bibliographic Details
Main Authors Rivas, David Fernandez, Verhaagen, Bram, Enriquez, Oscar R, Versluis, Michel, Prosperetti, Andrea, Gardeniers, Han, Lohse, Detlef
Format Journal Article
LanguageEnglish
Published 12.10.2012
Subjects
Physics - Fluid Dynamics
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Summary:In this fluid dynamics video we show acoustic cavitation occurring from pits etched on a silicon surface. By immersing the surface in a liquid, gas pockets are entrapped in the pits which upon ultrasonic insonation, are observed to shed cavitation bubbles. Modulating the driving pressure it is possible to induce different behaviours based on the force balance that determines the interaction among bubbles and the silicon surface. This system can be used for several applications like sonochemical water treatment, cleaning of surfaces with deposited materials such as biofilms.
DOI:10.48550/arxiv.1210.4016