Real-time simulation of deformable bubble underwater

Abstract

Deforming bubbles under water are important phenomena that we always encounter in our daily lives. In this paper, we present a real-time bubble simulation framework based on shallow water simulation(SWS), spherical vortex and boundary element method(BEM). We first solve the shallow water equations to simulate the water volume and the free surface. We then adopt the flow field of spherical vortices to affect the bubbles' motion and interaction. BEM is later used to simulate the bubbles' deformation when they rise in water. In addition, we propose a method to simulate the splitting and merging of bubbles, as well as illustrating how to handle deformable objects of different scales in BEM.We finally report extensive results generated on a standard PC to demonstrate the algorithm's realism and performance.