A nearly optimal preconditioner for the Navier-Stokes equations
نویسندگان
چکیده
منابع مشابه
A nearly optimal preconditioner for the Navier-Stokes equations
We present a preconditioner for the linearised Navier-Stokes equations which is based on the combination of a fast transform approximation of an advection diiusion problem together with the recently introduced`BF B T ' resulting preconditioner when combined with an appropriate Krylov subspace iteration method yields the solution in a number of iterations which appears to be independent of the R...
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Article history: Received 23 March 2009 Received in revised form 2 August 2010 Accepted 9 August 2010 Available online 19 August 2010
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Local preconditioning for the Navier-Stokes equations may be called optimal if it equalizes all propagation and dissipation time-scales, for all combinations of Mach number and Reynolds number. Previously designed preconditioners are ineffective for certain combinations of low Reynolds number and low Mach number; in addition some of these create a growing mode, making the PDE-system unstable. (...
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ژورنال
عنوان ژورنال: Numerical Linear Algebra with Applications
سال: 2001
ISSN: 1070-5325
DOI: 10.1002/nla.239