3D modelling of electromagnetic fields: advantages and disadvantages of nodal or edge elements. (4th August 2014)

• Record Type: Journal Article
• Authors: Bandelie, B.; Rioux–Damidau, F.
• Is Part Of: International journal of computer applications technology. Volume 8:Number 1/2(1995)
• Page Start: 41
• Page End: 47
• Publication Date: 2014-08-04
• Subjects: 3D modelling -- boundary integral method -- BIM -- electromagnetic fields -- finite element method -- FEM -- nodal element -- edge element; Technology -- Data processing -- Periodicals; 620.00285
• Languages: English
• ISSNs: 0952-8091

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.