Author
Abstract

Matrix-free implicit treatments are now commonly used for computing compressible flow problems: a reduced cost per iteration and low-memory requirements are their most attractive features. This paper explains how it is possible to preserve these features for all-speed flows, in spite of the Use of a low-Mach preconditioning matrix. The proposed approach exploits a particular property of a widely used low-Mach preconditioner proposed by Turkel. Its efficiency is demonstrated on some steady and Unsteady applications. Copyright (C) 2008 John Wiley & Sons, Ltd.

Year of Publication
2008
Journal
International Journal for Numerical Methods in Fluids
Volume
58
Number of Pages
493-526
ISBN Number
0271-2091
Accession Number
WOS:000259855900002
DOI
10.1002/fld.1730
Alternate Journal
Int J Numer Meth Fl
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