Article
On the sound emission of acoustic cavitation (en)
* Presenting author
Abstract:
Since the early days of acoustic cavitation, it became evident that the presence of oscillating bubbles in intense sound fields in liquids creates a variety of acoustic emission features, perceived as “cavitation noise”. Here, some early works on this phenomenon are reviewed, and particularly the contributions by Werner Lauterborn are highlighted. Being still far from fully understood, it is tried to give an overview of various aspects of acoustic cavitation emissions from the author’s present point of view. Issues touched upon are harmonic and subharmonic emissions, broadband noise, chaotic single bubble dynamics, period doubling cascades, synchronization, and synthetic spectra generated from simulations.