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Computing the electromagnetic field of the system of arbitrarily positioned conductors in horizontally stratified multilayer medium
Author(s) -
Sarajcev Petar,
Vujevic Slavko,
Lovric Dino
Publication year - 2014
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.1991
Subject(s) - electrical conductor , attenuation , isotropy , scalar (mathematics) , electromagnetic field , magnetic field , finite element method , coupling (piping) , physics , electric field , scalar potential , mechanics , mathematical analysis , optics , computational physics , acoustics , materials science , geometry , electrical engineering , classical mechanics , mathematics , engineering , composite material , quantum mechanics , thermodynamics
Summary This paper presents a novel computational methodology, based on the finite element technique, for the analysis of electromagnetic field due to system of arbitrarily positioned current‐carrying conductors in horizontally stratified multilayer medium, having arbitrary number of layers with different characteristics (including air). Each soil layer is horizontally unbounded, homogenous and isotropic, whereas conductors can penetrate different layers and extend into the air. The effect of the stratified multilayer medium is taken into account by using the originally developed fixed image method. Complete electromagnetic coupling between grounding system conductors (satisfying thin‐wire approximation) is taken into account, whereas attenuation and phase shift effects are approximated. The electric and magnetic field in stratified multilayer medium are computed from the scalar electric and vector magnetic potentials, using the said fixed image method and approximations to the attenuation and phase shift effects. Copyright © 2014 John Wiley & Sons, Ltd.