Simulate Wave Body Interaction Based on the Incompressible SPH Method

Simulate Wave Body Interaction Based on the Incompressible SPH Method
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基于不可压缩SPH方法模拟波体相互作用

DOI:
10.1016/j.proeng.2015.11.257
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发表时间:
2015
期刊:
Procedia Engineering
影响因子:
--
通讯作者:
Kang-Ning Niu
Kang-Ning Niu
中科院分区:
其他
文献类型:
--
作者:
Xi-Peng Lv;Xing Zheng;Ni-Bo Zhang;Kang-Ning Niu

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光滑粒子流体力学方法(SPH)已被证明在处理与波浪有关的问题方面具有出色的能力。与SPH方法相比,不可压缩光滑颗粒流体力学(ISPH)方法通过求解泊松方程来求解压力,而不是通过求解状态方程。ISPH法是捕获自由表面粒子的一种很好的方法。相对于SPH方法,ISPH方法比传统SPH方法具有更高的稳定性和精度。本文提出了求解二维波体耦合问题的ISPH方法,特别是运动结构的ISPH方法。在大多数传统的ISPH技术中,边界是固定的;在这项工作中,移动边界应用于ISPH方法。然后将该模型应用于两个问题:(1)固定矩形结构与直线波的相互作用;(2)非线性波浪耦合的二维浮动矩形结构。计算结果与实验数据和现象基本一致。
The smoothed particle hydrodynamics method (SPH) has been proved to have an excellent ability in dealing with issues related to the wave. Compared with the SPH method, the incompressible smoothed particle hydrodynamics (ISPH) method has solved the pressure by solving the Poisson equation, rather than by solving the equation of state. The ISPH method presents a good approach to capture the free surface particle. With the respect of the SPH method, the ISPH method shows more stability and accurate of the numerical results than the traditional SPH method. This paper presents an ISPH method for two dimensional wave-body coupled problems, especially for the move structure. In most conventional ISPH techniques, the boundary is fixed; in this work, the move boundary is applied in the ISPH method. Then the model is applied to two problems: (1) interaction between a fixed rectangular structure and a liner wave; (2) two dimensional floating rectangular structure coupled with the nonlinear wave. The final results show agreement with the experiment data and phenomena.
DOI: 10.1017/s0022112069000309
发表时间: 1969-09
影响因子: 3.7
作者:
C. Mei;J. Black
通讯作者: C. Mei;J. Black
DOI: 10.1098/rspa.1976.0092
发表时间: 1976-07
期刊: Proceedings of the Royal Society of London. A. Mathematical and Physical Sciences
影响因子: --
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