Numerical modeling of interfacial two-phase flows with phase change

We developed a numerical model to simulate two-phase flow with phase change at the interface. The sharp liquid-gas interface is tracked using the geometric Volume-of-Fluid (VOF) method. The bulk fluids are considered to be viscous, conducting, and incompressible with significant surface tension at the interface. The model is developed based on the open-source Basilisk framework, using adaptive-mesh refinement (AMR) to fully resolve the region near the interface. The model is validated using the 1D Stefan problem and 1D sucking problem. The validated approach is then used to simulate an evaporating droplet falling in a high-temperature environment.