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Eigenmode analysis of boundary conditions for the one-dimensional preconditioned Euler equations

Abstract:

The effect of local preconditioning on boundary conditions is analyzed for the subsonic, one-dimensional Euler equations. Decay rates for the eigenmodes of the initial boundary value problem are determined for different boundary conditions and different preconditioners whose intent is to accelerate low Mach number computations. Riemann invariant boundary conditions based on the unpreconditioned Euler equations are shown to be reflective when used with preconditioning, and asymptotically, at l...

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Publication status:
Published

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Publisher copy:
10.1006/jcph.2000.6472

Authors


Darmofal, DL More by this author
Moinier, P More by this author
More by this author
Institution:
University of Oxford
Department:
Oxford, MPLS, Mathematical Inst
Journal:
JOURNAL OF COMPUTATIONAL PHYSICS
Volume:
160
Issue:
1
Pages:
369-384
Publication date:
2000-05-01
DOI:
ISSN:
0021-9991
URN:
uuid:59fc1b90-5d8d-4da2-aae3-11af755615f9
Source identifiers:
21139
Local pid:
pubs:21139
Language:
English

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