[en] Perfectly Matched Layer (PML) techniques are widely used for dealing with unbounded problems. However their performance depends critically on both an absorption coefficient and the numerical method. The coefficient is generally tuned by using costly and case-dependent optimization procedures or set empirically. In this paper we present some efficient profiles of the coefficient that allow to avoid any tuning in discrete contexts. These profiles are compared by means of two benchmarks with different numerical methods.
Disciplines :
Engineering, computing & technology: Multidisciplinary, general & others Physical, chemical, mathematical & earth Sciences: Multidisciplinary, general & others
Author, co-author :
Modave, Axel ; Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Applied and Computational Electromagnetics (ACE)
Delhez, Eric ; Université de Liège - ULiège > Département d'aérospatiale et mécanique > Mathématiques générales
Geuzaine, Christophe ; Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Applied and Computational Electromagnetics (ACE)
Language :
English
Title :
On the Parameters of the Perfectly Matched Layer in Discrete Contexts
Publication date :
26 July 2011
Event name :
10th International Conference on Mathematical and Numerical Aspects of Waves (WAVES 2011)
Event place :
Vancouver, Canada
Event date :
from 25-07-2011 to 29-07-2011
Audience :
International
Main work title :
Proceedings of the 10th International Conference on Mathematical and Numerical Aspects of Waves (WAVES 2011)
