A geometric multigrid method for the efficient solution of time-harmonic 3-D eddy-current problems is presented. A finite element method with a scalar potential and a vector potential is used to describe the problem. Numerical examples show that using the right smoother in the multigrid, a good convergence of solutions, which does not deteriorate for bad quality meshes can be obtained. The computation time for solving the eddy-current problem of the multigrid method is much faster than that of the conjugate gradient method with incomplete Cholesky factorization as preconditioner.
Bíró O. Edge element formulations of eddy current problems,
Comput. Methods Appl. Mech. Eng.
, Vol. 169, 1999, pp. 391–405.
Bíró O., 'Edge element formulations of eddy current problems' (1999) 169Comput. Methods Appl. Mech. Eng.: 391-405.
Bíró O.Edge element formulations of eddy current problemsComput. Methods Appl. Mech. Eng.1999169391405)| false