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Trefftz-Discontinuous Galerkin and Finite Element Multi-Solver Technique for Modeling Time-Harmonic EM Problems With High-Conductivity Regions.
- Source :
-
IEEE Transactions on Magnetics . Feb2014, Vol. 50 Issue 2, p401-404. 4p. - Publication Year :
- 2014
-
Abstract
- This paper introduces a multi-solver technique to enhance the broadband performance of time-harmonic finite element solvers when solving electromagnetic problems with high-conductivity regions. The high-conductivity regions are modeled by the Trefftz-discontinuous Galerkin (TDG) formulation, whereas a tangential vector finite element (TVFE) formulation is used in the rest of the computational domain. The novel multi-solver technique couples the TVFE and TDG models by making use of Robin-type transmission conditions. The efficiency is shown by computing the broadband frequency sweep of the inductance of a two-wire transmission line; the necessary number of DoFs in the multi-solver case decreases significantly compared with the pure TVFE solution. The results of this problem also verify the new formulation and its implementation because the problem has an analytical solution. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00189464
- Volume :
- 50
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- IEEE Transactions on Magnetics
- Publication Type :
- Academic Journal
- Accession number :
- 94864005
- Full Text :
- https://doi.org/10.1109/TMAG.2013.2284383