[A well posed PML model for anisotropic elastodynamic]
On propose dans cette Note un modèle PML bien posé pour l'élastodynamique. La technique utilisée repose sur une approche algébrique conduisant à un problème fortement bien posé et assurant la continuité des inconnues à la traversée de la couche évitant ainsi les réflexions parasites. De plus ce nouveau modèle porte sur les inconnues primitives contrairement à celui obtenu par l'approche de Bérenger [J.P. Bérenger, J. Comput. Phys. (1994) 185–200]. Il est donc plus facile à intégrer dans un code de calcul existant.
We propose in this paper a well-posed PML model for the elastodynamic system. The technique relies on an algebraic approach leading to a strongly well posed system, ensuring continuity of the variables across a layer, avoiding interfering reflexions. Moreover, this new model is written in the primitive variables, unlike the system obtained by the Bérenger approach [J.P. Bérenger, J. Comput. Phys. (1994) 185–200] and so is easier to integrate into an existing code.
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Adib Rahmouni  1
@article{CRMATH_2004__338_12_963_0,
author = {Adib Rahmouni},
title = {Un mod\`ele {PML} bien pos\'e pour l'\'elastodynamique anisotrope},
journal = {Comptes Rendus. Math\'ematique},
pages = {963--968},
year = {2004},
publisher = {Elsevier},
volume = {338},
number = {12},
doi = {10.1016/j.crma.2004.04.001},
language = {fr},
}
Adib Rahmouni. Un modèle PML bien posé pour l'élastodynamique anisotrope. Comptes Rendus. Mathématique, Volume 338 (2004) no. 12, pp. 963-968. doi: 10.1016/j.crma.2004.04.001
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