高精度ISPH法による直立壁面上の砕波の数値解析

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タイトル別名
  • Accurate Incompressible SPH Method for Simulation of Wave Breaking on Vertical Seawall
  • コウセイド ISPHホウ ニ ヨル チョクリツ ヘキメン ジョウ ノ サイハ ノ スウチ カイセキ

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説明

A numerical wave flume based on a particle method is a key tool for a design of coastal structure under the action of extremely large and strongly nonlinear wave forces. The SPH, which is the predominant method in the international research society, contains unphysical artificial viscosity due to its explicit algorithm. The ISPH method evades the artificial viscosity by introducing semi-implicit algorithm, however it suffers from another drawback, namely a pressure fluctuation. In this study, accurate schemes, which have been developed to enhance a stability of pressure in the MPS method, are applied to the ISPH method, with examining their applicability through some benchmark tests.

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