Hostname: page-component-89b8bd64d-b5k59 Total loading time: 0 Render date: 2026-05-11T07:56:25.380Z Has data issue: false hasContentIssue false

The sharp-interface approach for fluids with phase change:Riemann problems and ghost fluid techniques

Published online by Cambridge University Press:  15 December 2007

Christian Merkle
Affiliation:
Abteilung für Angewandte Mathematik, lbert-Ludwigs-Universität Freiburg, Hermann-Herder Str. 10, 79104 Freiburg, Germany. christian@mathematik.uni-freiburg.de
Christian Rohde
Affiliation:
Institut für Angewandte Mathematik und Numerische Simulation, Universität Stuttgart, Pfaffenwaldring 57, 70569 Stuttgart, Germany.
Get access

Abstract


Systems of mixed hyperbolic-elliptic conservation laws can serve as models for the evolution of a liquid-vapor fluid with possible sharp dynamical phase changes. We focus on the equations of ideal hydrodynamics in the isothermal case and introduce a thermodynamically consistent solution of the Riemann problem in one space dimension. This result is the basis for an algorithm of ghost fluid type to solve the sharp-interface model numerically. In particular the approach allows to resolve phase transitions sharply, i.e., without artificial smearing in the physically irrelevant elliptic region. Numerical experiments demonstrate the reliability of the method.

Information

Type
Research Article
Copyright
© EDP Sciences, SMAI, 2007

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Article purchase

Temporarily unavailable