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Progress with Multigrid Schemes for Hypersonic Flow Problems

Radespiel, R. and Swanson, R.C. (1995) Progress with Multigrid Schemes for Hypersonic Flow Problems. Journal of Computational Physics, pp. 103-122.

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Abstract

Several multigrid schemes are considered for the numerical computation of viscous hypersonic flows. For each scheme, the basic solution algorithm employs upwind spatial discretization with explicit multistage time stepping. Two-level versions of the various multigrid algorithms are applied to the two-dimensional advection equation, and Fourier analysis is used to determine their damping properties. The capabilities of the multigrid methods are assessed by solving three different hypersonic flow problems. Some new multigrid schemes based on semicoarsening strategies are shown to be quite effective in relieving the stiffness caused by the high- aspect-ratio cells required to resolve high Reynolds number flows. These schemes exhibit good convergence rates for Reynolds numbers up to 200x10** and Mach numbers up to 25.

Document Type:Article
Additional Information: LIDO-Berichtsjahr=1995,
Title:Progress with Multigrid Schemes for Hypersonic Flow Problems
Authors:
AuthorsInstitution or Email of Authors
Radespiel, R.UNSPECIFIED
Swanson, R.C.UNSPECIFIED
Date:1995
Journal or Publication Title:Journal of Computational Physics
Refereed publication:Yes
In ISI Web of Science:Yes
Page Range:pp. 103-122
Series Name:Vol. 116
Status:Published
Keywords:Hypersonic Flow, Navier-Stokes Equations, Fourier Analysis, Multigrid, Semicoarsening
HGF - Research field:UNSPECIFIED
HGF - Program:Space (old)
HGF - Program Themes:W RP - Raumtransport
DLR - Research area:UNSPECIFIED
DLR - Program:W RP - Raumtransport
DLR - Research theme (Project):W - Grundlagen Raumtransport - Anlagen und Messtechnik (old)
Location: Köln-Porz , Braunschweig , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Institut für Entwurfsaerodynamik
Deposited By: elib DLR-Beauftragter
Deposited On:03 Apr 2006
Last Modified:27 Apr 2009 10:05

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