Exact and approximate Riemann solvers at phase boundaries

被引：21

作者：

Fechter, S. ^{[1
]}

Jaegle, F. ^{[1
]}

Schleper, V. ^{[2
]}

机构：

[1] Univ Stuttgart, Inst Aerodynam & Gas Dynam, D-70569 Stuttgart, Germany

[2] Univ Stuttgart, Inst Appl Anal & Numer Simulat, D-70569 Stuttgart, Germany

来源：

COMPUTERS & FLUIDS | 2013年 / 75卷

关键词：

Compressible fluid dynamics; Two-phase flow; Sharp interface; Riemann problem; Surface tension; MODEL; FLOW;

D O I：

10.1016/j.compfluid.2013.01.024

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

We present an exact as well as two new approximate Riemann solvers for phase boundaries in compressible multiphase flow without mass transfer governed by the Euler equations. These Riemann solvers are designed for the simulation of compressible tow-phase flow in the framework of a sharp interface approach. The focus lies thereby on the accuracy as well as on the computational efficiency of the Riemann solvers. Furthermore, the approximate Riemann solvers are suitable for general equations of state, which do not have to be given in a closed analytical form and can include surface tension effects at the phase boundaries. Numerical tests in the form of two-phase shock-tube problems and droplet-shock interactions conclude the presentation. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：112 / 126

页数：15

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