Title :
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
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;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2010.2046480
