Eddy currents; FEM; skin and proximity effects; subdomain method
Abstract :
[en] A finite element subproblem method is developed to correct the inaccuracies proper to perfect conductor and impedance boundary condition models, particularly near edges and corners of the conductors, for a large range of conductivities and frequencies. Successive local corrections, supported by fine local meshes, can be obtained from each model to a more accurate one, allowing efficient extensions of their domains of validity.
Research Center/Unit :
Applied and computational electromagnetics
Disciplines :
Electrical & electronics engineering
Author, co-author :
Dular, Patrick ; Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Applied and Computational Electromagnetics (ACE)
Péron, Victor; Université de Pau et des Pays de l’Adour > MAGIQUE3D
Perrussel, Ronan; Université de Toulouse > LAPLACE
Krähenbühl, Laurent; Université de Lyon, École Centrale de Lyon > Ampère
Geuzaine, Christophe ; Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Applied and Computational Electromagnetics (ACE)
Language :
English
Title :
Perfect Conductor and Impedance Boundary Condition Corrections via a Finite Element Subproblem Method
P. Dular, R. V. Sabariego, and L. Krähenbühl, "Subdomain perturbation finite-element method for skin and proximity effects," IEEE Trans. Magn., vol. 44, no. 6, pp. 738-741, Jun. 2008. (Pubitemid 351711289)
F. Buret, M. Dauge, P. Dular, L. Krähenbühl, V. Péron, R. Perrussel, et al., "Eddy currents and corner singularities," IEEE Trans. Magn., vol. 48, no. 2, pp. 679-682, Feb. 2012.
P. Dular, R. V. Sabariego, C. Geuzaine, M. V. Ferreira da Luz, P. Kuo-Peng, and L. Krähenbühl, "Finite element magnetic models via a coupling of subproblems of lower dimensions," IEEE Trans. Magn., vol. 46, no. 8, pp. 2827-2830, Aug. 2010.
C. Geuzaine, B. Meys, F. Henrotte, P. Dular, and W. Legros, "A Galerkin projection method for mixed finite elements," IEEE Trans. Magn., vol. 35, no. 3, pp. 1438-1441, May 1999.
Z. Badics, Y. Matsumoto, K. Aoki, F. Nakayasu, M. Uesaka, and K. Miya, "An effective 3-D finite element scheme for computing electromagnetic field distorsions due to defects in eddy-current nondestructive evaluation," IEEE Trans. Magn., vol. 33, no. 2, pp. 1012-1020, Mar. 1997. (Pubitemid 127826504)
