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| HAL: hal-00347885, version 1 |
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| IEEE Transactions on Magnetics 44, 6 (2008) 782-785 |
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| An Amplitude Formulation to Reduce the Pollution Error in the Finite Element Solution of Time-Harmonic Scattering Problems |
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| Christophe GeuzaineJacob Bedrossian |
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| (2008) |
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| We present a procedure to gain significant accuracy in the finite element solution of electromagnetic scattering problems at high wavenumbers. The technique relies on the determination, at a low computational cost, of an approximate solution around the scattering obstacle, which is then used to formulate an alternative variational formulation in terms of a slowly-oscillatory amplitude. The proposed method does not require any new finite element basis functions, and can thus be easily implemented in existing finite element codes. |
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| 1: | Institut Elie Cartan Nancy (IECN) |
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CNRS : UMR7502 – INRIA – Université Henri Poincaré - Nancy I – Université Nancy II – Institut National Polytechnique de Lorraine (INPL) |
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| 2: | CORIDA (INRIA Nancy - Grand Est / IECN / LMAM) |
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INRIA – CNRS : UMR7502 – Université de Lorraine |
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| Subject | : | Mathematics/Numerical Analysis |
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| Accuracy – electromagnetic scattering – finite element methods – pollution – short-wave problem |
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| hal-00347885, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00347885 | |
| oai:hal.archives-ouvertes.fr:hal-00347885 | |
| From: Xavier Antoine | |
| Submitted on: Wednesday, 17 December 2008 09:27:49 | |
| Updated on: Friday, 19 December 2008 11:32:06 | |
