An upwind difference scheme for the double-adiabatic equations
type: Item
instance of: scholarly article
title: An upwind difference scheme for the double-adiabatic equations
zbMATH Open document ID: 0871.76059
published in: Journal of Computational Physics
publication date: 1997-10-08T00:00:00Z
review text: An upstream differencing numerical scheme is devised for the double-adiabatic equations which describe a plasma with anisotropic pressure. The Godunov-type method uses an approximate Riemann solver, which is constructed with an explicit representation of the complete eigensystem of the Jacobian matrix of the flux vector. A correction term is introduced into the numerical flux which allows switching off the instabilities. First results of calculations for the interaction of the solar wind with a comet show that the pressure anisotropies due to the ion pickup modify the plasma flow considerably.
Mathematics Subject Classification ID: 76M20
Mathematics Subject Classification ID: 76X05
zbMATH DE Number: 992126
zbMATH Keywords: eigensystem of Jacobian matrix
zbMATH Keywords: interaction of solar wind with comet
zbMATH Keywords: Godunov-type method
zbMATH Keywords: approximate Riemann solver
zbMATH Keywords: correction term
author: Rudolf Wegmann
MaRDI profile type: Publication
full work available at URL: jcph.1996.5602
OpenAlex ID: W2024331883
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DOI: 10.1006/JCPH.1996.5602
description: scientific article; zbMATH DE number 992126