Development of a new discretization scheme for gas-liquid two-phase flow using an accurate particle method

Abstract

In analyzing flow with an interface between two phases, particle methods are commonly used. In most situations, the flow is considered a free-surface flow and ignores the effect of gas-phase. However, such a simulation cannot deal with bubble behaviors. On the other hand, when the flow is treated as a multiphase flow, the calculation easily becomes unstable due to the discontinuity of the physical property. In this study, a new numerical method for the computation of multiphase flow, especially liquid-gas flow, is proposed and validated through simple test cases.