Title: A deflated iterative solver for magnetostatic finite element models with large differences in permeability
Authors: De Gersem, Herbert ×
Hameyer, Kay #
Issue Date: Jan-2001
Publisher: E d p sciences
Series Title: European physical journal-applied physics vol:13 issue:1 pages:45-49
Abstract: The presence of materials with a relative large difference in permeability has a harmful influence on the convergence of Krylov subspace iterative solvers. Some slow converging components are not cured by preconditioning and correspond to eigenvectors reflecting the domains with relatively low permeable material. Approximations for those eigenvectors are determined using physical knowledge of the problem. The iterative solution process is split up in a small problem counting for the separated eigenmodes and a full-size problem out of which the slow converging modes are removed. This deflated preconditioned solver is faster converging compared to more common approaches, such as the incomplete Cholesky conjugate gradient method.
ISSN: 1286-0042
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Production Engineering, Machine Design and Automation (PMA) Section
ESAT - ELECTA, Electrical Energy Computer Architectures
Physics, Campus Kulak Kortrijk
× corresponding author
# (joint) last author

Files in This Item:

There are no files associated with this item.

Request a copy


All items in Lirias are protected by copyright, with all rights reserved.

© Web of science