Dual-time smoothed particle hydrodynamics for incompressible fluid simulation

被引：7

作者：

Ramachandran, Prabhu ^{[1
]}

Muta, Abhinav ^{[1
]}

Ramakrishna, M. ^{[2
]}

机构：

[1] Indian Inst Technol, Dept Aerosp Engn, Mumbai 400076, Maharashtra, India

[2] Indian Inst Technol Madras, Dept Aerosp Engn, Chennai 600036, Tamil Nadu, India

来源：

COMPUTERS & FLUIDS | 2021年 / 227卷

关键词：

SPH; Dual-time stepping; Incompressible fluid flow; FREE-SURFACE FLOWS; ARTIFICIAL COMPRESSIBILITY; NUMERICAL-SIMULATION; MULTIPHASE FLOWS; SPH; STABILITY; SCHEME;

D O I：

10.1016/j.compfluid.2021.105031

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

In this paper we propose a dual-time stepping scheme for the Smoothed Particle Hydrodynamics (SPH) method. Dual-time stepping has been used in the context of other numerical methods for the simulation of incompressible fluid flows. Here we provide a scheme that combines the entropically damped artificial compressibility (EDAC) along with dual-time stepping. The method is accurate, robust, and demonstrates up to seven times better performance than the standard weakly-compressible formulation. We demon-strate several benchmarks showing the applicability of the scheme. In addition, we provide a completely open source implementation and a reproducible manuscript. (c) 2021 Elsevier Ltd. All rights reserved.

引用

页数：19

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