A conservative spectral element method for the approximation of compressible fluid flow

Authors
Citation
K. Black, A conservative spectral element method for the approximation of compressible fluid flow, KYBERNETIKA, 35(1), 1999, pp. 133-146
Citations number
13
Categorie Soggetti
AI Robotics and Automatic Control
Journal title
KYBERNETIKA
ISSN journal
00235954 → ACNP
Volume
35
Issue
1
Year of publication
1999
Pages
133 - 146
Database
ISI
SICI code
0023-5954(1999)35:1<133:ACSEMF>2.0.ZU;2-W
Abstract
A method to approximate the Euler equations is presented. The method is a m ulti-domain approximation, and a variational form of the Euler equations is found by making use of the divergence theorem. The method is similar to th at of the Discontinuous-Galerkin method of Cockburn and Shu, but the implem entation is constructed through a spectral, multi-domain approach. The meth od is introduced and is shown to be a conservative scheme. A numerical exam ple is given for the expanding flow around a point source as a comparison w ith the method proposed by Kopriva.