Development of multi-phase-field model for multiphase flow without Lagrange multiplier term

Abstract

Multi-phase-field (MPF) method is a powerful promising tool for expressing multiphase flows with three or more phases, because it can represent complex interfacial morphologies without tracking an interface. In this study, a conservative MPF model without Lagrange multiplier for multiphase flow is newly constructed, and the accuracy of the model is verified through comparison with some MPF models.