Calculation of 3D eddy current problems by an hybrid T-Ω method

Author

Bouillault, F. ; Ren, Z. ; Razek, A.

Author_Institution

Ecole Superieure d´´Electr., Paris VI Univ., Gif-sur-Yvette, France

Volume

26

Issue

2

fYear

1990

fDate

3/1/1990 12:00:00 AM

Firstpage

478

Lastpage

481

Abstract

A hybrid T-Ω method to solve eddy-current problems is proposed. The finite-element method is used in the conducting region while the boundary integral method (BIM) is used in free space. The unknowns in the conducting regions are the electric vector potential T and the magnetic scalar potential Ω. Calculations for a test example concerning the current in an hollow sphere are performed, and field and current distributions are shown. The results confirm the usefulness of the MIXTER-TΩ code which uses the TΩ formulation and the coupling of FEM and BIM methods

Keywords

boundary-elements methods; eddy currents; electrical engineering computing; electromagnetic field theory; finite element analysis; numerical methods; BIM methods; FEM; MIXTER-TΩ code; boundary integral method; current distributions; electric vector potential; finite-element method; hollow sphere; hybrid T-Ω method; magnetic scalar potential; Current distribution; Differential equations; Eddy current testing; Eddy currents; Electric potential; Finite element methods; Integral equations; Magnetostatics; Permeability; Saturation magnetization;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.106357

Filename

106357