In this paper, the moving particle semi-implicit (MPS) method is developed towards the simulation of multiphase incompressible flows with mass transfer due to vaporization. Traditional MPS method assumes particle volume to be constant and encounters difficulty in modeling vapor-liquid phase change due to abrupt volume change in vaporization process. In the proposed model, particle volume is assumed variable and volume change due to vaporization is considered. Particle splitting technique is developed to avoid large volume difference among particles. Source term accounting for mass transfer rate in vaporization process is developed in the pressure Poisson equation (PPE). Combined with enhanced MPS schemes developed in our previous studies, the numerical method is tested on single rising bubble, one-dimensional Stefan problem, vapor film growth around a sphere without gravity and then used in simulations of two-dimensional film boiling on both horizontal surface and cylindrical surface.

本文将移动粒子半隐式（MPS）方法发展为模拟由于汽化引起的传质传质的多相不可压缩流。传统的MPS方法假定颗粒体积是恒定的，并且由于汽化过程中体积的突然变化而在建模汽液相变化方面遇到困难。在提出的模型中，假定颗粒体积可变，并且考虑了由于汽化引起的体积变化。开发粒子分裂技术以避免粒子之间的大体积差异。在压力泊松方程（PPE）中提出了解释汽化过程中传质速率的源项。结合我们先前研究中开发的增强型MPS方案，对单个上升气泡，一维Stefan问题，