A numerical method for 3-D eddy current problems

An iterative procedure using finite element method without the Lagrange mul tiplier is proposed for three-dimensional eddy current problems, which is b ased on an iterative procedure derived from a perturbation problem of the m agnetostatic problem. To consider the continuity of an excitation current d ensity, a correction method is also proposed. Numerical results show that t he BiConjugate Gradient (BiCG) method is applicable to the complex symmetri c linear systems arising in the iterative procedure, and that approximate p hysical quantities are suitable.