[en] In electromagnetic compatibility, scattering problems are defined in an infinite spatial domain, while numerical techniques such as finite element methods require a computational domain that is bounded. The perfectly matched layer (PML) is widely used to simulate the truncation of the computational domain. However, its performance depends critically on an absorption function. This function is generally tuned by using case-dependent optimization procedures. In this paper, we will present some efficient functions that overcome any tuning. They will be compared using a realistic scattering benchmark solved with the Discontinuous Galerkin method.
Disciplines :
Ingénierie électrique & électronique
Auteur, co-auteur :
Modave, Axel ; Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Applied and Computational Electromagnetics (ACE)
Kameni, Abelin; Supélec > Laboratoire de Génie Electrique de Paris - LGEP
Lambrechts, Jonathan; Université Catholique de Louvain - UCL
Delhez, Eric ; Université de Liège - ULiège > Département d'aérospatiale et mécanique > Mathématiques générales
Pichon, Lionel; Supélec > Laboratoire de Génie Electrique de Paris - LGEP
Geuzaine, Christophe ; Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Applied and Computational Electromagnetics (ACE)
Langue du document :
Anglais
Titre :
An optimum PML for scattering problems in the time domain
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