Voltage and Current Sources for Massive Conductors Suitable With the $A{\hbox{-}}\chi$ Geometric Eddy-Current Formulation

The aim of the paper is to present an automatic and general technique, suitable with the A-χ geometric eddy-current formulation, to impose sources over massive conductors of any shape. For this purpose, the localized source approach is used, which does not require the solutions of steady-state conduction problems in the preprocessing stage. Nevertheless, this approach needs a thick cut in each active conductor, which is usually found “by hand.” In this paper, an automatic and general algorithm to compute such thick cuts is introduced. Some benchmark problems are presented to demonstrate the generality and the robustness of the algorithm.