Title: 3D modelling of electromagnetic fields: advantages and disadvantages of nodal or edge elements
Authors: B. Bandelie, F. Rioux-Damidau
Addresses: Institut d'Electronique Fondamentale, Universites Paris XI, URA CNRS 022, Bat 220, 91405 Orsay, France. ' Institut d'Electronique Fondamentale, Universites Paris XI, URA CNRS 022, Bat 220, 91405 Orsay, France
Abstract: Starting from the magnetic field formulation of magnetodynamics, we consider the coupling of a finite element method in the conductors with a boundary integral method for the description of the exterior region. We examine three different discretizations: one variable per edge, two variables per edge and nodal variables. We determine the precision on the magnetic field h and the current j = curl h as a function of the dimension of the mesh and of the CPU time in each case. We deduce the best-suited variable to the computation of each physical quantity.
Keywords: 3D modelling; boundary integral method; BIM; electromagnetic fields; finite element method; FEM; nodal element; edge element.
International Journal of Computer Applications in Technology, 1995 Vol.8 No.1/2, pp.41 - 47
Published online: 05 Jun 2014 *Full-text access for editors Access for subscribers Purchase this article Comment on this article