修正AC型多相流multi-phase-fieldモデルの構築と精度評価

抄録

Since a phase-field method can easily express complicated phenomena such as large deformation, division, and combination of droplets, it is greatly expected to apply it to the multiphase flow problems with three or more phases. However, Cahn-Hilliard equation which is often used in the multiphase flow problem has a disadvantage that the time increment is small and computational cost is large. In this study, we modified our previous conserved Allen-Cahn type multi-phase-field (CAC-MPF) model to improve the volume conservative property. The accuracy of volume conservation of the modified CAC-MPF model was confirmed by preforming an advection simulation.