Title

Numerical Computation of Capacitance of Oblate Spheroidal Shells

Document Type

Article

Publication Date

7-2010

Publication Source

PIERS 2010 Cambridge - Progress in Electromagnetics Research Symposium, Proceedings

Volume

2010

Inclusive pages

670-674

Publisher

Electromagnetics Academy

Place of Publication

Cambridge, MA

ISBN/ISSN

9781934142141

Peer Reviewed

yes

Abstract

In this paper, numerical method for determining the capacitance of a conducting oblate spheroidal shell has been established. An explicit finite difference technique for solving Laplace's equation in oblate spheroidal coordinates systems for an axially symmetric geometry has been developed. An ingenious strategy was created to overcome the singularity problems encountered in the oblate spheroids. Consequently, the finite difference results were used to compute the capacitance of the spheroidal shell in an easy to understand manner. This was achieved using the Dirichlet boundary conditions on the oblate spheroidal surfaces. The shell capacitance results obtained did fall in the same range with those obtained using analytical method.

Disciplines

Electrical and Computer Engineering

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