Taming Acoustic Cavitation
Fluid Dynamics
2012-10-16 v1
Abstract
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.
Keywords
Cite
@article{arxiv.1210.4016,
title = {Taming Acoustic Cavitation},
author = {David Fernandez Rivas and Bram Verhaagen and Oscar R. Enriquez and Michel Versluis and Andrea Prosperetti and Han Gardeniers and Detlef Lohse},
journal= {arXiv preprint arXiv:1210.4016},
year = {2012}
}