A Modified FEM-DBCI Method for Static and Quasi-Static Electromagnetic Field Problems

Author

Aiello, Giovanni ; Alfonzetti, Salvatore ; Borzì, Giuseppe ; Dilettoso, Emanuele ; Salerno, Nunzio

Author_Institution

Dipt. di Ing. Elettr., Elettron. e dei Sist., Univ. di Catania, Catania, Italy

Volume

46

Issue

8

fYear

2010

Firstpage

2803

Lastpage

2806

Abstract

This paper presents a modified version of the hybrid FEM-DBCI (Finite Element Method-Dirichlet Boundary Condition Iteration) method to solve static and quasi-static electromagnetic field problems in open boundary domains. The modification consists of overlapping the fictitious truncation boundary with the integration one, as in the FEM-BEM (Boundary Element Method) method. The global algebraic system obtained is solved iteratively by means of the GMRES (Generalized Minimal Residual) solver, applied virtually to a reduced system in which the unknowns are those relative to the potential on the truncation boundary only. Some validation examples are provided.

Keywords

boundary-elements methods; electromagnetic field theory; electrostatics; finite element analysis; iterative methods; Dirichlet boundary condition iteration; FEM-BEM method; boundary element method; finite element method; generalized minimal residual solver; global algebraic system; modified FEM-DBCI method; open boundary domains; quasistatic electromagnetic field problem; static electromagnetic field problem; truncation boundary; Boundary conditions; Boundary element methods; Character generation; Eddy currents; Electromagnetic fields; Electrostatics; Finite element methods; Helium; Integral equations; Skin effect; Boundary element method; electrostatic field; finite element method; integral equations; skin effect;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2010.2046480

Filename

5513037