Parallel direct numerical simulation of 3D interface-resolved droplet evaporation

Multi-phase flows and phase transitions are widely observed phenomena in natu- ral processes and engineering applications such as atmospheric precipitation, bubbles forming during water boiling, and spray combustion. To study the physics of such phenomena and to broaden their application areas, simulations of multiphase flows with phase change are crucial. Therefore, in this thesis, a parallel front-tracking/finite-difference method is developed for interface-resolved fully 3D simulations of droplet evaporation. In this method, the mass, momentum, and energy conservation equations are solved on a 3D-Cartesian, uniform, fixed, staggered Eulerian grid while a Lagrangian grid is employed to track the interface between the liquid and vapor phases. The method is first validated for the classical d2-law. Then the method is applied to simulate the evaporation of a 3D Leidenfrost droplet.