GPU accelerated numerical investigation of the spherical stability of an acoustic cavitation bubble excited by dual-frequency.

ABSTRACT: The spherical stability of an acoustic cavitation bubble under dual-frequency excitation is investigated numerically. The radial dynamics is described by the Keller-Miksis equation, which is a second-order ordinary differential equation. The surface dynamics is modelled by a set of linear ordinary differential equation according to Hao and Prosperetti (1999), which takes into account the effect of vorticity by boundary layer approximation. Due to the large amount of investigated parameter combinations, the numerical computations were carried out on graphics processing units. The results showed that for bubble size between R_E=2μm and 4μm, the combination of a low and a high frequency, and the combination of two close but not equal frequencies are important to prevent the bubble l

SUBMITTER: Klapcsik K 

PROVIDER: S-EPMC8350425 | biostudies-literature | 2021 Sep

REPOSITORIES: biostudies-literature