title: A two-dimensional nonlinear model for the generation of stable cavitation bubbles.
abstract: Bubbles appear by acoustic cavitation in a liquid when rarefaction pressures attain a specific threshold value in a liquid. Once they are created, the stable cavitation bubbles oscillate nonlinearly and affect the ultrasonic field. Here we present a model developed for the study of bubble generation in a liquid contained in a two-dimensional cavity in which a standing ultrasonic field is established. The model considers dissipation and dispersion due to the bubbles. It also assumes that both the ultrasonic field and the bubble oscillations are nonlinear. The numerical experiments predict where the bubbles are generated from a population of nuclei distributed in the liquid and show how they affect the ultrasonic field.
authors.affiliation: Universidad Rey Juan Carlos, Tulipán s/n, 28933 Móstoles, Madrid, Spain. Electronic address: christian.vanhille@urjc.es.
authors.forename: Christian
authors.initials: C
authors.lastname: Vanhille
keywords: Acoustic cavitation; Cavitation threshold; Nonlinear acoustics; Two-dimensional simulation