Title :
Multigrid for time-harmonic 3-D eddy-current analysis with edge elements
Author :
Weiß, Bernhard ; Bíró, Oszkár
Author_Institution :
IGTE, Graz Univ. of Technol., Austria
fDate :
5/1/2005 12:00:00 AM
Abstract :
A complex multigrid algorithm for the calculation of time-harmonic three-dimensional eddy currents is presented. The finite-element method with edge elements is used for the discretization of the problems. Different multigrid smoothers are compared for two formulations of the time-harmonic eddy-current problem. It turns out that, using the right combination of smoother and eddy-current formulation, the computation times can be substantially reduced.
Keywords :
computational electromagnetics; eddy currents; finite element analysis; physics computing; 3D eddy current analysis; algebraic systems equations; complex multigrid algorithm; edge elements; finite element method; multigrid smoothers; time-harmonic eddy-currents; Algorithm design and analysis; Current density; Differential equations; Eddy currents; Finite element methods; Iterative methods; Kernel; Numerical analysis; Numerical stability; Testing; Convergence of solutions; edge elements; solution of algebraic systems of equations; time-harmonic eddy-currents;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2005.846057
