1033 粒子法に基づく数値造波水槽における水面判定法の改良

概要

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The particle method (SPH and MPS method) shows the good performance to simulate the drastic fragmentation of water. While, the surface tension has not been taken into consideration in the most previous studies on the particle method. Hence, in some previous simulations, it was difficult to reduce effectively the small scale disturbances on water surface including a small fragmentation, although the occurrence frequency of which was not so large. In this viewpoint, the accuracy of the water surface tracking in the scale of particle diameter was not necessarily satisfactory in the previous simulations by the MPS method. In this study, the surface tension model, which is the body-force-type description of the surface tension proposed by Nomura et al., is modified to fit the calculation of the wave breaking and runup process in hydraulic engineering.
一般社団法人日本機械学会の論文
2003-11-22