Reference : Time-domain surface impedance boundary conditions enhanced by coarse volume finite-el...
Scientific journals : Article
Engineering, computing & technology : Electrical & electronics engineering
http://hdl.handle.net/2268/113662
Time-domain surface impedance boundary conditions enhanced by coarse volume finite-element discretisation
English
Vazquez Sabariego, Ruth mailto [Université de Liège - ULg > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Applied and Computational Electromagnetics (ACE) >]
Geuzaine, Christophe mailto [Université de Liège - ULg > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Applied and Computational Electromagnetics (ACE) >]
Dular, Patrick mailto [Université de Liège - ULg > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Applied and Computational Electromagnetics (ACE) >]
Gyselinck, Johan mailto [ > > ]
Feb-2012
IEEE Transactions on Magnetics
IEEE
48
2
631-634
Yes (verified by ORBi)
International
0018-9464
Piscataway
NJ
[en] Finite-element methods ; magnetodynamics ; surface-impedance boundary conditions ; time-domain analysis
[en] In computational magnetodynamics, surface impedance boundary conditions allow to accurately account for high-frequency flux components while removing the massive conducting regions from the computation domain. The time-domain approach previously proposed by the authors relies on the spatial discretisation of a 1-D eddy-current problem by means of dedicated basis functions derived from the analytical frequency-domain solution. In this paper, these time-domain impedance conditions are combined with a coarse volume finite-element discretisation of the massive conductors to capture slowly varying flux components. The accuracy of the hybrid approach can further be improved by introducing a fictitious frequency-dependent conductivity. The method is illustrated and validated by means of 1-D and 2-D test cases in the frequency and time domain.
Researchers ; Professionals ; Students
http://hdl.handle.net/2268/113662
10.1109/TMAG.2011.2172923

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