Determination of the stabilization and shock-capturing parameters in supg formulation of compressible flows

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21 Citations (Scopus)

Abstract

The Streamline-Upwind/Petrov-Galerkin (SUPG) formulation is one of the most widely used stabilized methods in finite element computation of compressible flows, The formulation includes a stabilization parameter, which is mostly known as "τ" and plays a significant part in determining the accuracy of the solution. Typically the SUPG formulation is used in combination with, a shock-capturing term that provides additional stability near the shock fronts. The definition of the shock-capturing term includes a shock-capturing parameter that plays an important role in determining the quality of the solution near the shocks. In this paper, we describe, for the finite element formulation of compressible flows based on conservation variables, new ways for determining the τ and the shock-capturing parameter. The new definitions for the shock-capturing parameter are far simpler than the one based on the entropy variables and involve less operations in calculating the shock-capturing term.

Original languageEnglish
Publication statusPublished - 2004 Dec 1
Externally publishedYes
EventEuropean Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS 2004 - Jyvaskyla, Finland
Duration: 2004 Jul 242004 Jul 28

Conference

ConferenceEuropean Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS 2004
CountryFinland
CityJyvaskyla
Period04/7/2404/7/28

Keywords

  • Compressible flows
  • Finite element formulation
  • Shock-capturing parameter
  • Stabilization parameters
  • SUPG stabilization

ASJC Scopus subject areas

  • Artificial Intelligence
  • Applied Mathematics

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