Lagrangian particle method for simulation of wave overtopping on a vertical seawall
Lagrangian particle method for simulation of wave overtopping on a vertical seawall
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DOI：
10.1142/s0578563405001239
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发表时间：
2005-06-01
影响因子：
2.4
通讯作者：
Sakai, T
中科院分区：
文献类型：
--
作者：
Gotoh, H;Ikari, H;Sakai, T
粒子法或无网格拉格朗日法在描述水的破碎和聚结的复杂水面行为方面表现出高性能。本文基于带有表面张力项的Navier-Stokes方程，对垂直海堤上的波浪越顶过程进行了数值模拟，并采用属于粒子法范畴的MPS（移动粒子半隐式）方法进行离散化。改进了相邻粒子的列表过程以减少计算量。 MPS方法很好地再现了实验中的波浪越顶过程。 MPS方法对溢流量的预测与实验结果吻合较好。
A particle method, or a gridless Lagrangian method, shows the high performance in describing the complicated behavior of water surface with the fragmentation and coalescence of water. In this paper, a wave overtopping process on a vertical seawall is numerically simulated on the basis of the Navier-Stokes equation with surface-tension term, which is discretized by the MPS (moving particle semi-implicit) method belonging to the category of the particle method. An improvement of the listing process of neighboring particle is introduced to reduce the computational load. Wave over-topping process in the experiments are well reproduced by the MPS method. The predictions of the MPS method of the overtopping volume agree well with the experimental results.