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Title: Preconditioner updates applied to CFD model problems
Authors: Birken, PhilippTebbens, Jurjen DuintjerMeister, AndreasTuma, Miroslav
???metadata.dc.subject.ddc???: 510 - Mathematik (Mathematics)
Issue Date: 2007
Series/Report no.: Mathematische Schriften Kassel07, 01
Abstract: In the present paper we concentrate on solving sequences of nonsymmetric linear systems with block structure arising from compressible flow problems. We attempt to improve the solution process by sharing part of the computational effort throughout the sequence. This is achieved by application of a cheap updating technique for preconditioners which we adapted in order to be used for our applications. Tested on three benchmark compressible flow problems, the strategy speeds up the entire computation with an acceleration being particularly pronounced in phases of instationary behavior.
URI: urn:nbn:de:hebis:34-2007022617269
Appears in Collections:Mathematische Schriften Kassel

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