Title :
On the convergence of transient eddy-current problems
Author :
Weiß, Bernhard ; Bíró, Oszkár
Author_Institution :
IGTE, Tech. Univ. of Graz, Austria
fDate :
3/1/2004 12:00:00 AM
Abstract :
In the computation of eddy current fields with edge elements it is known that the numerical stability can be rather inferior for the A*-formulation, in comparison to that of the A, v-formulation. In this paper, the differences of the two formulations with regard to the convergence of an iterative solver will be pointed out. The result is a suggestion about a new preconditioner for the conjugate gradient method.
Keywords :
conjugate gradient methods; convergence of numerical methods; eddy currents; transient analysis; algebraic systems; conjugate gradient method; convergence; edge elements; iterative solver; numerical stability; preconditioner; transient eddy-current problems; Convergence; Current density; Differential equations; Eddy currents; Eigenvalues and eigenfunctions; Finite element methods; Gradient methods; Iterative methods; Numerical analysis; Numerical stability;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2004.825460
