A coupled smoothed particle hydrodynamics-finite volume method for three-dimensional modeling of bubble dynamics

Bubble pulsation is a characteristic multiphase compressible flow, which involves periodic oscillation and strong pressure wave vulnerable to boundary conditions. The smoothed particle hydrodynamics (SPH) has limitations in imposing the fluid suitable for such problems, have been verified first with state-of-the-art SPH boundaries. It brings challenges three-dimensional modeling. Then, we propose combine finite volume method via spatial coupling deal this problem. accuracy of coupled validated by comparisons other numerical methods theoretical equation from spherical more complex bubble oscillations. Good agreements are obtained terms radius pulse peak. conclusions drawn work computational framework lay foundation further complicated study on dynamics, complete process underwater explosion, related fluid–structure interaction problems.