Improving the accuracy of the integral equation in the hybrid FEM-DBCI method for open boundary electrostatic problems

Author

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

Author_Institution

Dipt. di Ingegneria Elettrica Elettronica e dei Sistemi, Catania Univ.

Volume

42

Issue

4

fYear

2006

fDate

4/1/2006 12:00:00 AM

Firstpage

579

Lastpage

582

Abstract

In this paper, the accuracy of the integral equation of the hybrid finite-element-method-Dirichlet boundary condition iteration method is improved for the computation of open boundary electrostatic fields. This is achieved by selecting the integration curve (or surface) as lying in the middle of the triangular (or tetrahedral) elements. A notable improvement in accuracy is obtained compared with selecting the integration curve (or surface) as constituted by element sides

Keywords

boundary integral equations; electric fields; finite element analysis; Dirichlet boundary condition iteration; electrostatic field; hybrid FEM-DBCI; hybrid finite-element-method; integral equation accuracy; integration curve; open boundary; triangular middle; Boundary conditions; Conductors; Dielectrics; Electrostatics; Finite element methods; Gaussian processes; Green function; Integral equations; Symmetric matrices; Voltage; Finite-element method (FEM); integral equations; open boundary problems;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2006.871420

Filename

1608272