Modeling of Cavitation Bubble Cloud with Discrete Lagrangian Tracking

In this paper, a Lagrangian-Eulerian (LE) two-way coupling model is developed to numerically study the cavitation bubble cloud. model, gas-liquid mixture treated directly as continuous and compressible fluid governing equations are solved by methods in Eulerian descriptions. An isobaric closure exhibiting better consistency properties applied evaluate pressure of mixture. The dispersed gas/vapor bubbles tracked Lagrangian fashion, their compression expansion described modified Rayleigh-Plesset equation, which considers close-by flow other than these infinity for each bubble. performance present method validated number benchmark tests. Then, how cloud affects shape propagation wave when pulse travels through. end, three-dimensional simulation vapor cloud’s Rayleigh collapse carried out, induced extreme discussed detail. total number’s influence on size distribution during also analyzed.