Simulation of dynamic process of double bubble coupled acoustic cavitation

In order to simulate the acoustic cavitation process of double-bubble coupling, based on fluid dynamics governing equation and volume fraction model, this paper proposes a three-dimensional finite element simulation model coupled ultrasonic in Fluent software, numerically simulates dynamic driven by wave. The nonlinear characteristics with double bubbles are studied evaluating variation field around bubble. results indicate that under drive, spherical gradually widen first maximal radius, then shrink swiftly, finally collapse. There is an interaction force between paired bubbles, which inhibits expansion increases bubble contraction time. ability converse energy strengthened stage. Compared single bubble, pressure inside expanded when collapses. analysis will provide reference for bubbles.