[en] We present a numerical method for the computation of wave scattering by convex three-dimensional obstacles, which exhibits a bounded computational complexity for arbitrarily high frequencies.
The method is based on a combination of a high-frequency ansatz for the unknown density in a boundary integral formulation of the problem, and an extension of the ideas of the method of stationary phase to
allow for the efficient integration of oscillatory functions. The method builds upon the ideas proposed in [2] and [1].
Disciplines :
Electrical & electronics engineering
Author, co-author :
Geuzaine, Christophe ; Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Applied and Computational Electromagnetics (ACE)
Bruno, Oscar
V Sabariego, Ruth ; Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Applied and Computational Electromagnetics (ACE)
Colignon, David ; Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Applied and Computational Electromagnetics (ACE)
Language :
English
Title :
High-Frequency Integral Equation Solver for 3-D Wave Scattering Around Convex Obstacles
Publication date :
2008
Event name :
6ème Conférence Européenne sur les Méthodes Numériques en Electromagnétisme (NUMELEC2008)
Event place :
Liège, Belgium
Event date :
December 8-10
Audience :
International
Main work title :
Proceedings of 6ème Conférence Européenne sur les Méthodes Numériques en Electromagnétisme (NUMELEC2008)
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