Efficient Symmetric FEM-BEM Coupled Simulations of Electro-Quasistatic Fields

Author

Steinmetz, T. ; Gödel, N. ; Wimmer, G. ; Clemens, M. ; Kurz, S. ; Bebendorf, M.

Author_Institution

Fac. of Electr. Eng., Helmut-Schmidt-Univ., Hamburg

Volume

44

Issue

6

fYear

2008

fDate

6/1/2008 12:00:00 AM

Firstpage

1346

Lastpage

1349

Abstract

Electro-quasistatic as well as electrostatic simulations of 3D high-voltage (HV) technical devices are presented using a symmetric coupled formulation of both the finite-element-method (FEM) and the boundary-element-method (BEM). This formulation allows for the specification of Dirichlet boundary conditions on the coupling interface. Accurate solutions can be achieved without the need of large spatial discretization domains. The use of the adaptive-cross-approximation (ACA) and a block Jacobi preconditioner for the linear system solver results in an efficient simulation scheme for numerical computations of electric field distributions of realistic 3D high-voltage devices.

Keywords

boundary-elements methods; electric fields; electrostatics; finite element analysis; 3D high-voltage technical devices; Dirichlet boundary conditions; adaptive-cross-approximation; block Jacobi preconditioner; boundary-element-method; coupling interface; electric field distributions; electro-quasistatic fields; electrostatic simulations; finite-element-method; large spatial discretization domains; linear system solver; symmetric FEM-BEM coupled simulations; symmetric coupled formulation; Electro-quasistatics (EQSs); high-voltage technology; symmetric FEM-BEM coupling; time domain;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2008.915785

Filename

4527004