Magnetostatic and magnetodynamic mixed formulations compared with conventional formulations

摘要

Mixed formulations are characterized by the use, of not only one kind of unknown, but of two distinct kinds of unknowns. Some well-known mixed finite elements are well suited to the approximation of electromagnetic fields. Several characteristics of magnetostatic and magnetodynamic mixed formulations are presented and discussed. The use of nodal, edge, facet and volume mixed elements enables their natural and rigorous discretization. Their advantages compared with conventional formulations are pointed out.