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Computing electromagnetic eigenmodes with continuous Galerkin approximations
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DOI：10.1016/j.cma.2008.08.005.png)
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摘要
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Costabel and Dauge proposed a variational setting to solve numerically the time-harmonic Maxwell equations in 3D polyhedral geometries, with a continuous approximation of the electromagnetic field. In order to remove spurious eigenmodes, three computational strategies are then possible. The original method, which requires a parameterization of the variational formulation. The second method, which is based on an a posteriori filtering of the computed eigenmodes. And the third method, which uses a mixed variational setting so that all spurious modes are removed a priori. In this paper, we discuss the relative merits of the approaches, which are illustrated by a series of 3D numerical examples. (C) 2008 Elsevier B.V. All rights reserved.
Keyword:
Electromagnetism
Continuous Galerkin discretization
Eigenvalues and eigenvectors computations
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7.3
论文数:
1.3W
被引数:
5.6W
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