Conformal FIT formulation for simulations of electro-quasistatic fields

Issue title: Special Volume: Proceedings of the eleventh International Symposium on Applied Electromagnetics and Mechanics ISEM-Versailles ISEM 03

Article type: Research Article

Authors: Schreiber, Ute^a | Clemens, Markus^b | van Rienen, Ursula^a

Affiliations: [a] Faculty of Engineering, Rostock University, A.-Einstein-Str. 2, D-18069 Rostock, Germany. Tel.: +49 381 498 3486;+49 381 498 3494; Faz: +49 381 498 3479; E-mail: {ute.schreiber,ursula.van-rienen}@etechnik.uni-rostock.de | [b] Computational Electromagnetics Laboratory (TEMF), Technische Universität Darmstadt, Schloß gartenstr. 8, D-64289 Darmstadt, Germany. Tel.: +49 6151 16 2361; Fax: +49 6151 16 4611; E-mail: clemens@temf.de

Abstract: The Finite Integration Technique (FIT) is a discretization scheme for Maxwell's equations, where commonly orthogonal tensor product grids are preferred for efficiency reasons. However, orthogonal grids have difficulties to model curved shape boundaries. For the simulation of electro-quasistatic (EQS) fields with the Finite Integration Technique (FIT) a new technique is introduced, which allows an improved geometric modeling of curved boundaries while maintaining orthogonal tensor product grids. The reduction of the geometrical errror results in the improvement of the solution accuracy. Numerical results for a test problem show the improvement in accuracy with the new approach.

Keywords: finite integration technique, conformal FIT, Electro-Quasistatics, boundary modeling

DOI: 10.3233/JAE-2004-561

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 19, no. 1-4, pp. 193-197, 2004