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A dynamic injection operator in a multigrid solution of convection-diffusion equations

โœ Scribed by Jules Kouatchou

Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
107 KB
Volume
26
Category
Article
ISSN
0271-2091

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โœฆ Synopsis

A multigrid method is studied for the solution of a linear system resulting from the high-order nine-point discretization of the convection-diffusion equations. The residual injection operator is used as a substitute for the usual full-weighting in the multigrid process. A heuristic analysis is given to obtain a dynamic injection operator that is cost-effective for both diffusion-and convection-dominated problems. Numerical experiments are employed to test the stability and efficiency of the proposed method.

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