Comparison between Nested and Non-Nested Multigrid Methods for Magnetostatic Field Analysis

Cingoski, Vlatko and Tsubota, Katsumi and Yamashita, Hideo (2000) Comparison between Nested and Non-Nested Multigrid Methods for Magnetostatic Field Analysis. Non-Linear Electromagnetic Systems.

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Abstract

A comparision of the efficiency of the multigrid solution method for magnetostatic field analysis using nested and non-nested finite element meshes is presented, Two types of multigrid algorithms are investigated; The V-cycle and the W-cycle multigrid method. For the generation of nested meshes a simple halving procedure is employed resulting in fine meshes strongly dependent on the initial coarse mesh and with uniform mesh densities. NOn-nested meshes are generated using adaptive meshing with a suitable error estimator. The result show that both methods provide faster solution than the ordinary ICCG method. The speed-ups range from 2 to 10 mainly depending on the type of the cycle and the number of unknowns.

Item Type: Article
Subjects: Engineering and Technology > Electrical engineering, electronic engineering, information engineering
Divisions: Faculty of Electrical Engineering
Depositing User: Vlatko Cingoski
Date Deposited: 18 Dec 2012 10:00
Last Modified: 30 Sep 2013 10:01
URI: http://eprints.ugd.edu.mk/id/eprint/3931

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