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Asymptotic delta-Parametrization of Surface-Impedance Solutions

Abstract : The surface impedance methods are among the most efficient for solving time-harmonic eddy-current problems with a small penetration depth. When the solution is required for a wide range of frequencies (or material conductivities) the standard approach leads to the solution of a complex-valued problem for each frequency (or conductivity). Hereafter we introduce a close method, parametrized by the skin depth ( delta), based on a formal asymptotic expansion. It provides accurate results with a reduced computational cost for a wide range of delta values.
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Submitted on : Thursday, March 7, 2019 - 11:35:44 AM
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  • HAL Id : hal-00959750, version 1


Laurent Krähenbühl, Patrick Dular, Victor Péron, Ronan Perrussel, Clair Poignard, et al.. Asymptotic delta-Parametrization of Surface-Impedance Solutions. IEEE CEFC, May 2014, Annecy, France. ⟨hal-00959750⟩



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