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Optimized Schwarz preconditioning for SEM based magnetohydrodynamics by St-Cyr, Amik; Rosenberg, Duane; Kim, Sang Dong is a scholarly article available to read on EtoBox.

What is Optimized Schwarz preconditioning for SEM based magnetohydrodynamics about?

A recent theoretical result on optimized Schwarz algorithms demonstrated at the algebraic level enables the modification of an existing Schwarz procedure to its optimized counterpart. In this work, it is shown how to modify a bilinear FEM based Schwarz preconditioning strategy originally presented in [Fischer, JCP 133:84 1997] to its optimized version. The latter is employed to precondition the pseudo--Laplacian operator arising from the spectral element discretization of the magnetohydrodynamic equations in Elsasser form.

Author

St-Cyr, Amik; Rosenberg, Duane; Kim, Sang Dong

Published

2008

Language

EN