DocumentCode
1274141
Title
Regularization of eddy-current formulations using discrete grad-div operators
Author
Clemens, Markus ; Weiland, Thomas
Author_Institution
FB 18 Elektrotech. und Informationstech., Technische Hochschule Darmstadt, Germany
Volume
38
Issue
2
fYear
2002
fDate
3/1/2002 12:00:00 AM
Firstpage
569
Lastpage
572
Abstract
Discrete formulations based on the consistent finite integration technique for magneto-quasi-static problems involve the solution of either singular or very ill-conditioned algebraic systems of equations. For these formulations a regularization based on an augmentation with discrete grad-div-operators is proposed, extending the ideas in Hahne and Weiland (1992) and Bossavit (2000). Possible effects on the spectra of the algebraic systems are discussed and confirmed in numerical experiments
Keywords
eddy currents; integration; mathematical operators; algebraic system; discrete grad-div operator; eddy current; finite integration technique; magneto-quasi-static field; numerical algorithm; regularization; Conducting materials; Conductivity; Eddy currents; Eigenvalues and eigenfunctions; Helium; Integral equations; Magnetic domains; Magnetic materials; Maxwell equations; Voltage;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/20.996149
Filename
996149
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