高精度粒子法における気液二相流解析のための新しい離散化手法の検討

抄録

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.