Post processing of 2D eddy current problems

The authors deal with the calculation of global quantities from magnetic vector potential solutions of finite-element models for 2D eddy current Cartesian and axisymmetric power flow and forces, using the J×B method and the Maxwell stress method. To test the validity of the codes, a considerable number of finite-element calculations were performed (in a total of nine problems) for frequencies in the range of 0.1 to 900 Hz. The model used was the E core plate levitator for 2D eddy current problems. The relative merits of the alternative formulations are shown by tables of values comparing the computed results