Magnetic field simulation using conformal FIT formulations

Author

Clemens, Markus ; Weiland, Thomas

Author_Institution

FB 18 Elektrotechnik & Informationstechnik, Technische Univ. Darmstadt, Germany

Volume

38

Issue

2

fYear

2002

fDate

3/1/2002 12:00:00 AM

Firstpage

389

Lastpage

392

Abstract

For the simulation of magneto-quasi-static fields with finite integration implicit time domain (FI²TD) and finite integration frequency domain (FIFD) methods, a new technique is introduced which allows an improved geometric modeling of curved shape boundaries while maintaining orthogonal tensor product grids. The reduction of the geometrical error results in higher condition numbers of the linear algebraic systems. The resulting additional computational costs for the solution of these systems are shown to be small. Numerical results for test problems show the improvement of the solution accuracy with the new approach

Keywords

eddy currents; frequency-domain analysis; geometry; magnetic fields; tensors; time-domain analysis; computational costs; conformal FIT formulations; curved shape boundaries; eddy currents; finite integration frequency domain methods; finite integration implicit time domain methods; geometric modeling; geometrical error; linear algebraic systems; magnetic field simulation; magneto-quasi-static fields; orthogonal tensor product grids; solution accuracy; Conducting materials; Frequency domain analysis; Integral equations; Magnetic domains; Magnetic fields; Magnetic materials; Maxwell equations; Shape; Solid modeling; Tensile stress;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.996104

Filename

996104