Simulation of Acoustic Cavitation Bubble Motion by Lattice Boltzmann Method

Abstract

The motion characteristic of cavitation bubble is one of the major factors affecting acoustic cavitation. In this paper, a cavitation model coupled with acoustic pressure is established using lattice Boltzmann pseudopotential model. Aimed at demonstrating the feasibility of applying LB method in acoustic cavitation, the acoustic cavitation simulations are compared with the predictions of Keller equation. The comparison of theoretical prediction and numerical simulation shows that LB method is suitable for acoustic cavitation simulation.

Simulation on Cavitation Bubble Collapsing with Lattice Boltzmann Method

“…at top boundary [12], which we can solve the cavitation bubble in complex geometric boundary with acoustic field or dimensionless electromagnetic field [26]. Although this model has numerous shortcomings, this work demonstrates that investigation on cavitation bubble with LBM is very suitable and effective during the process of collapse between first and second collapse, and interval time was founded.…”

“…Chen [11] simulated the cavitating bubble growth with the modified Shan-Chen model with large density ratio in both quiescent and shear flows and compared with the Rayleigh-Plesset equation. Zhou and Shan [12] simulated the acoustic cavitation of spherical bubble and compared with the predictions of Keller equation to original Shan-Chen pseudopotential model. Recently, Shan and his group used modified Shan-Chen model found the second collapse in the rigid boundary damage of cavitation bubble and the impeding effect between two collapses successfully [13].…”

Study of Cavitation Bubble Collapse near a Wall by the Modified Lattice Boltzmann Method

“…The Rayleigh-Plesset equation results were compared with their simulation results. Shan et al [16] and Zhou et al [17] used LBM to simulate the growth and collapse of a single bubble under a two-dimensional pressure field and the sound field at a plane rigid wall. Kucera and Blake [18] used the mirror image method to simulate cavitation erosion of a plane rigid interface upon single bubble collapse near the interface and simulated bubbles near a rigid interface at different angles but did not consider the influence of cavitation on the flow field.…”