Performance Analysis of FEM Solvers on Practical Electromagnetic Problems
Authors
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Gergely Máté Kiss
Affiliation
AVL List GmbH, Alte Poststraße 152, 8020 Graz, Austria
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Jan Kaska
Affiliation
Department of Theory of Electrical Engineering, Faculty of Electrical Engineering, University of West Bohemia, Univerzitní 2732/8, 301 00 Pilsen, Czech Republic
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Roberto André Henrique de Oliveira
Affiliation
Department of Electrical and Computer Engineering, Faculdade de Ciências e Tecnologia, New University of Lisbon, Largo da Torre, 2825-149 Caparica, Portugal
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Olena Rubanenko
Affiliation
Research and Innovation Centre for Electrical Engineering, Faculty of Electrical Engineering, University of West Bohemia, Univerzitní 2732/8, 301 00 Pilsen, Czech Republic
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Balázs Tóth
AffiliationDepartment of Mechanics, Institute of Applied Mechanics, University of Miskolc, Faculty of Mechanical Engineering and Informatics, Miskolc-Egyetemváros, H-3515 Miskolc, Hungary
Abstract
The paper presents a comparative analysis of different commercial and academic software. The comparison aims to examine how the integrated adaptive grid refinement methodologies can deal with challenging, electromagnetic-field related problems. For this comparison, two bench-mark problems were examined in the paper. The first example is a solution of an L-shape domain like test problem, which has a singularity at a certain point in the geometry. The second problem is an induction heated aluminum rod, which accurate solution needs to solve non-linear, coupled physical fields. The accurate solution of this problem requires applying adaptive mesh generation strategies or applying a very fine mesh in the electromagnetic domain, which can significantly increase the computational complexity. The results show that the fully-hp adaptive meshing strategies, which are integrated into Agros Suite, can significantly reduce the task's computational complexity compared to the automatic h-adaptivity, which is part of the examined, popular commercial solvers.
