Corrected Incompressible SPH method for accurate water-surface tracking in breaking waves
Corrected Incompressible SPH method for accurate water-surface tracking in breaking waves
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DOI：
10.1016/j.coastaleng.2007.10.001
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发表时间：
2008-03
影响因子：
4.4
通讯作者：
Abbas Khayyer;H. Gotoh;Songdong Shao
中科院分区：
文献类型：
--
作者：
Abbas Khayyer;H. Gotoh;Songdong Shao
提出了一种修正不可压缩SPH （CISPH）方法，用于破碎波中水面的精确跟踪。为了保证不可压缩SPH （ISPH）公式的角动量保持，基于变分方法导出了校正项。将所提出的CISPH方法用于求解模拟平面斜坡上孤立波破碎和后破碎的Navier-Stokes方程。通过与实验数据的定性和定量比较，证实了CISPH方法比ISPH方法具有更高的精度。校正项的引入大大提高了ISPH方法模拟破波和破波后过程的能力和精度。
A Corrected Incompressible SPH (CISPH) method is proposed for accurate tracking of water surface in breaking waves. Corrective terms are derived based on a variational approach to ensure the angular momentum preservation of Incompressible SPH (ISPH) formulations. The proposed CISPH method is applied to solve the Navier–Stokes equation for simulating the breaking and post-breaking of solitary waves on a plane slope. The enhanced precision (compared to the ISPH method) of the CISPH method is confirmed through both qualitative and quantitative comparisons with experimental data. The introduction of corrective terms significantly improves the capability and the accuracy of the ISPH method in the simulation of wave breaking and post-breaking.