Finite element modelling of electromagnetic fields using different types of variables and boundary conditions

Author

Rioux-Damidau, F. ; Bandelier, B. ; Duranton, L. ; Amor, A. Hadj

Author_Institution

Lab. de Genie Electr. de Paris, Ecole Superieure d´´Electricite, Gif-sur-Yvette, France

Volume

28

Issue

2

fYear

1992

fDate

3/1/1992 12:00:00 AM

Firstpage

1126

Lastpage

1129

Abstract

The authors calculate the precision of the determinations of the magnetic field and current in a finite-element method when varying the size of the mesh, with two different types of boundary conditions (given electric field or given magnetic field) and three types of unknowns (nodal variables, one or two variables per edge). Precision for the determination of the current is shown to depend little on the types of variables and boundary conditions. One variable per edge is the better one. On the contrary, the precision for the magnetic field is greatly dependent on the types of variables and boundary conditions. One variable per edge gives very bad results. Nodal variables with h boundary conditions give the smallest errors; with e boundary conditions, two variables per edge is the better choice

Keywords

boundary-value problems; electromagnetic fields; finite element analysis; boundary conditions; edge variables; electromagnetic fields; finite-element method; nodal variables; Boundary conditions; Calculus; Electromagnetic fields; Electromagnetic modeling; Finite element methods; Integral equations; Magnetic devices; Magnetic fields; Shape; Testing;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.123882

Filename

123882