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A new quadrature approach is illustrated for the accurate numerical computation of Poisson integrals used in postprocessing of three-dimensional (3-D) finite-element (FE) solutions to Poisson equations. The innovative quadrature formulas, which exploit geometrical properties of regular polyhedra, are very easy to implement and allow us to obtain accurate results with a lower computational cost with respect to traditional quadrature techniques. Accuracy tests are presented, showing comparisons against both analytical and numerical results. An example of postprocessing of some FE solutions concerning the steady-state 3-D electromagnetic analysis of a real vacuum electron device is also given to better illustrate the advantages of the presented procedure.
Published in:
Magnetics, IEEE Transactions on
(Volume:39
,
Issue:
3
)
Date of Publication: May 2003
- Page(s):
- 1689 - 1692
- ISSN :
- 0018-9464
- INSPEC Accession Number:
- 7630956
- Digital Object Identifier :
- 10.1109/TMAG.2003.810413
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 13 May 2003
- Issue Date :
- May 2003
- Sponsored by :
- IEEE Magnetics Society
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