Bubble creation and multi-fluids interaction

In this article, we propose a physically based novel scheme on the bubble creation. By the scheme, the phase change of the liquid-gas interaction and the effect of volume expansion are simulated by altering the divergence of the velocity field. Because of the little mass of the gas and the great difference in density between liquid and vapor, the volume of the liquid is considered to be constant. We construct the multi-material interface using the volume of fluid (VOF) and piecewise linear interface construction (PLIC) methods and maintain the volume conservation for each material.