A computational method for two-phase Flow with a moving boundary Based on a gal model

摘要

A computational method for two-phase flow with a moving boundary is presented, in which the motion of each phase is treated separately to avoid numerical instability due to high-density ratio between the phases. To capture the moving boundary, we use a GAL (Grid-Averaged Lagrangian) model, which may appreciably reduce numerical diffusion in the convective transport simulation for a fractional volume of fluid and accurately satisfy the conservation of mass.