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Author Country (or Countries)

France

Abstract

A mathematical formulation suitable for the application of a novel Hermite finite element method, to solve electromagnetic field problems in two- and three-dimensional domains is studied. This approach offers the possibility to generate accurate approximations of Maxwell’s equations in smooth domains, with a rather rough interpolation and without curved elements. Method’s degrees of freedom are the normal derivative mean values of the electric field across the edges or the faces of a mesh consisting of N-simplices, in addition to the mean value in the mesh elements of the field itself. Second-order convergence of the electric field in the mean-square sense and first-order convergence of the magnetic field in the same sense are rigorously established, if the domain is a convex polytope. Numerical results for two-dimensional problems suggest however that second-order convergence can also be expected of the magnetic field. Both behaviors are shown to apply to the case of curved domains as well, provided a simple interpolated boundary condition technique is employed.

Digital Object Identifier (DOI)

http://dx.doi.org/10.18576/amis/120201

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