An H-based FEM-BEM formulation for a time dependent eddy current problem

Authors:
Salim Meddahi;Virginia Selgas
Affiliations:
Departamento de Matemáticas, Facultad de Ciencias, Universidad de Oviedo, Calvo Sotelo s/n, 33007 Oviedo, Spain;Departamento de Matemáticas, Universidade da Coruòa, Campus de Elviòa s/n, 15071 La Coruòa, Spain
Venue:
Applied Numerical Mathematics
Year:
2008

Citing 5
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Abstract

In this paper, we study a time-dependent eddy current problem posed in the whole space. We prove that the problem has a well-posed weak formulation. We also show that the latter formulation admits a well-posed saddle point structure when the constraint satisfied by the magnetic field in the dielectric medium is handled by means of a Lagrange multiplier. Furthermore, we provide a BEM-FEM formulation of the problem that leads to a semi-discrete Galerkin scheme based on Nedelec's edge elements and Raviart-Thomas elements. Finally, we analyze the asymptotic behavior of the error in terms of the mesh size parameter.