Curvilinear and higher order `edge´ finite elements in electromagnetic field computation

Author

Wang, J.S. ; Ida, N.

Author_Institution

Dept. of Electr. Eng., Akron Univ., OH, USA

Volume

29

Issue

2

fYear

1993

fDate

3/1/1993 12:00:00 AM

Firstpage

1491

Lastpage

1494

Abstract

A method for the systematic construction of first- and second-order edge and facet finite elements based on the nodal-based conventional elements is presented, and their use is discussed. Higher order elements are also considered. Both tetrahedral and hexahedral elements are presented. These elements are intimately related to the corresponding nodal-based elements, allowing an easy implementation in existing nodal-based finite-element computer programs. The elements constructed are then used for mode analyses in electromagnetic cavities. The solutions obtained are better than those obtained using linear elements

Keywords

electrical engineering computing; electromagnetic field theory; finite element analysis; physics computing; waveguide theory; curvilinear finite elements; electromagnetic cavities; electromagnetic field computation; facet finite elements; finite-element computer programs; first-order; hexahedral elements; higher order edge finite elements; mode analyses; nodal-based conventional elements; second-order; Eigenvalues and eigenfunctions; Electromagnetic analysis; Electromagnetic fields; Finite element methods; Interpolation; Shape; Supercomputers;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.250685

Filename

250685