Adaptive multigrid and domain decomposition methods in the computation of electromagnetic fields

JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS

卷:168

Article; Proceedings Paper

Hoppe, RHW

关键词: electromagnetic field computation;    multigrid methods;    domain decomposition;    edge elements;    a posteriori error estimation;   

DOI  :  10.1016/j.cam.2003.05.023

来源: Elsevier

【 摘 要 】

We consider efficient and robust adaptive multigrid and domain decomposition methods for the computation of electromagnetic fields in the low-frequency regime, i.e., for the quasistationary limit of Maxwell's equations based on curl-conforming edge element discretizations. Emphasis is on hybrid smoothing and nonmatching grids (mortar edge elements) as well as on adaptive grid refinement relying on residual type a posteriori error estimation. Numerical results are given to illustrate the performance of the multigrid solvers and the a posteriori error estimators. As a technologically relevant problem, we briefly address the computation of eddy currents in converter modules used as electric drives for high-power electromotors. (C) 2003 Elsevier B.V. All rights reserved.

【 授权许可】

Free