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A survey of numerical methods for transient eddy current problems

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4 Author(s)
Tsukerman, I.A. ; Dept. of Electr. Eng., Toronto Univ., Ont., Canada ; Konrad, A. ; Bedrosian, G. ; Chari, M.V.K.

The efficiencies of different time-stepping schemes and associated algebraic system solvers for transient eddy current computations are assessed. For 2-D problems, the direct methods nested dissection (ND) and quotient minimum degree (QMD) are shown to be preferable to the incomplete Cholesky conjugate-gradient (ICCG) method, provided enough memory is available. The multilevel preconditions (MP) method is highly efficient for magnetically homogeneous problems both in 2-D and 3-D. The efficiency of multilevel methods for inhomogeneous problems, although proven theoretically, needs further practical investigation

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Magnetics, IEEE Transactions on  (Volume:29 ,  Issue: 2 )