In this Note an improved version of the Schwarz domain decomposition method is introduced for highly heterogeneous media. This method uses new optimized interface conditions specially designed to take into account the heterogeneity between the subdomains on the interfaces. The mathematical analysis of these interface conditions is first presented. Then the asymptotic analysis upon the mesh size parameter together with the heterogeneity ratio is detailed.
Dans cette Note une variante de l'algorithme de Schwarz est introduite pour des milieux très hétérogènes. Cette méthode utilise des conditions d'interfaces optimisées spécialement conçues pour tenir compte de l'hétérogénéité entre les sous-domaines. L'étude mathématique de ces conditions d'interfaces est dans un premier temps présentée. Une analyse asymptotique en fonction de la finesse du maillage et du rapport de l'hétérogénéité est ensuite détaillée.
Accepted:
Published online:
Yvon Maday 1, 2; Frédéric Magoulès 3
@article{CRMATH_2005__341_11_701_0, author = {Yvon Maday and Fr\'ed\'eric Magoul\`es}, title = {Non-overlapping additive {Schwarz} methods tuned to highly heterogeneous media}, journal = {Comptes Rendus. Math\'ematique}, pages = {701--705}, publisher = {Elsevier}, volume = {341}, number = {11}, year = {2005}, doi = {10.1016/j.crma.2005.09.032}, language = {en}, }
Yvon Maday; Frédéric Magoulès. Non-overlapping additive Schwarz methods tuned to highly heterogeneous media. Comptes Rendus. Mathématique, Volume 341 (2005) no. 11, pp. 701-705. doi : 10.1016/j.crma.2005.09.032. https://comptes-rendus.academie-sciences.fr/mathematique/articles/10.1016/j.crma.2005.09.032/
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