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3D eddy currents computation by BEM using the modified magnetic vector potential and the reduced magnetic scalar potential
Author(s) -
Phan QuangAnh,
Meunier Gerard,
Chadebec Olivier,
Guichon JeanMichel,
Bannwarth Bertrand
Publication year - 2019
Publication title -
international journal of numerical modelling: electronic networks, devices and fields
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.249
H-Index - 30
eISSN - 1099-1204
pISSN - 0894-3370
DOI - 10.1002/jnm.2642
Subject(s) - scalar potential , magnetic potential , eddy current , vector potential , scalar (mathematics) , computation , isotropy , mathematical analysis , boundary element method , physics , electrical conductor , magnetic field , electric potential , classical mechanics , mechanics , geometry , mathematics , finite element method , voltage , algorithm , optics , quantum mechanics , thermodynamics
A new boundary element method (BEM) formulation has been developed for the computation of 3D eddy currents in both magnetic and conductive regions. The modified magnetic vector potential A ∗ in the active regions and the reduced magnetic scalar potential φ in the air are used as unknown variables. The formulation is limited to low‐frequency magneto‐harmonic problems associated to linear, homogeneous, isotropic, and simply‐connected regions. In such a configuration, it leads to accurate results with a reduced number of degrees of freedom located on a surface mesh delimiting the air/material interface.