オイラー表記に基づく自由表面単相流・多相流解析モデルの比較検討

抄録

In this paper, one free-surface single-phase flow “CADMAS-SURF/3D” and two multiphase flow models “DOLPHIN-3D and OpenFOAM”, which are based on Eulerian description, were compared with the previous two laboratory experiments on collision problems between bore and a structure. The validity of the models was confirmed by the comparison between the numerical and experimental results in terms of water surface elevation and pressure acting on the structure. As a result, the three models used in this study were found to have good accuracy although the difference of the models has an influence on the numerical results. The comparison examination of numerical models is said to provide the useful information contributing to the further development of computational fluid dynamics.