Abstract : We consider the scattering problem for 3-D electromagnetic harmonic waves. The time-domain Maxwell's equations are solved and Exact Controllability methods improve the convergence of the solutions to the time-periodic ones for nonconvex obstacles. A least-squares formulation solved by a preconditioned conjugate gradient is introduced. The discretization is achieved in time by a centered finite difference scheme and in space by Lagrange finite elements. Numerical results for 3-D nonconvex scatterers illustrate the efficiency of the method on vector and parallel computers.
https://hal.inria.fr/inria-00073072
Contributeur : Rapport de Recherche Inria
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Soumis le : mercredi 24 mai 2006 - 11:46:52
Dernière modification le : mardi 17 avril 2018 - 11:30:30
Document(s) archivé(s) le : dimanche 4 avril 2010 - 21:39:11
Marie-Odile Bristeau, Roland Glowinski, Jacques Périaux, Tuomo Rossi. 3D Harmonic Maxwell Solutions on Vector and Parallel Computers using Controllability and Finite Element Methods. [Research Report] RR-3607, INRIA. 1999. 〈inria-00073072〉
