Improvement of stability in moving particle semi-implicit method

被引：172

作者：

Kondo, Masahiro ^{[1
]}

Koshizuka, Seiichi ^{[1
]}

机构：

[1] Univ Tokyo, Dept Syst Innovat, Sch Engn, Bunkyo Ku, Tokyo 1138656, Japan

来源：

INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN FLUIDS | 2011年 / 65卷 / 06期

关键词：

particle methods; incompressibility; free surface flow; numerical oscillation; MPS; ISPH; INCOMPRESSIBLE SPH METHOD; WATER-SURFACE TRACKING; NUMERICAL SIMULATIONS; BREAKING WAVES; FLOWS; HYDRODYNAMICS; FRAGMENTATION; FLUID;

D O I：

10.1002/fld.2207

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

Moving particle semi-implicit ( MPS) method is one of the particle methods, which can be used to analyze incompressible free surface flow without surface tracking by a mesh or a scalar quantity. However, MPS causes unphysical numerical oscillation of pressure with high frequencies. We proposed a new formulation for the source term of Poisson equation of pressure. The proposed source term consists of three parts, one main part and two error-compensating parts. With proper selection of the coefficients for the error-compensating parts, we can suppress the unphysical pressure oscillation. Smoother pressure distributions are obtained in hydrostatic pressure and dam break problems. Copyright (C) 2010 John Wiley & Sons, Ltd.

引用

页码：638 / 654

页数：17

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