NUMERICAL ANALYSIS OF TIME-CHANGING WAVE FORCE ACTING ON DRIFTING RIGID STRUCTURE WITH SOLID-GAS-LIQUID PHASE FLOW MODEL

摘要

In this study, a 2-D solid-gas-liquid phase flow numerical model "DOLPHIN-2D" is developed based on a CIP method and an extended SMAC method in order to examine time-changing wave force and pressures acting on a drifting rigid structure. By applying it to a bore-structure collision problem, it is demonstrated that the model can simulate multiphase flows and time-changing wave force acting on the drifting structure appropriately and track different interfaces among solid, gas and liquid phases.