Accurate computation of local and global electrostatic quantities from FE solutions

Author

Coco, Salvatore ; Ragusa, Carlo

Author_Institution

Dipt. Elettrico, Univ. di Catania, Italy

Volume

36

Issue

4

fYear

2000

fDate

7/1/2000 12:00:00 AM

Firstpage

732

Lastpage

735

Abstract

In this paper we present a numerical post processing procedure, based on Poisson integrals, which allows a more accurate computation of local and global electrostatic quantities, such as electrical fields, charge densities and capacitances starting from rough Finite Element (FE) solutions to 2D and 3D electrostatic problems, governed by Laplace and Poisson equations. Some examples of application of the proposed postprocessing procedure to the FE solutions of 3D electrostatic problems are also provided. The additional computational cost is negligible if compared with the achievable increase of accuracy

Keywords

Laplace equations; Poisson equation; electrostatics; finite element analysis; 2D electrostatics; 3D electrostatics; Laplace equation; Poisson equation; Poisson integral; capacitance; charge density; electric field; finite element analysis; global quantity; local quantity; numerical post processing; software methodology; Application software; Capacitance; Computational efficiency; Electrostatics; Finite element methods; Integral equations; Iron; Laplace equations; Magnetic fields; Poisson equations;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.877552

Filename

877552