改良SOLA法による断熱二流体モデルの数値解法 : 第1報, 数値解法

抄録

In our previous study, the SOLA method, which is a numerical solution method for incompressible viscous flows, was modified to take into account the boundary conditions during the iteration process. This modification increased the computational efficiency. In the present study, the modified SOLA method was extended to be applicable to an adiabatic two-fluid model for two-phase flows. In this method, the pressure correction equation, which is defined by the volume balance between two phases, is iteratively solved in terms of not only pressure but also velocities and volume fractions of both phases. This makes the algorithm simple and therefore makes it easy to realiz in a program. This advantage implies possibilities for future improvement and upgrade.