Title :
Comparison Between BEM and Classical FEM for a 3D Low-Frequency Eddy-Current Analysis
Author :
Pusch, David ; Smajic, Jasmin ; Andjelic, Zoran ; Ostrowski, Joerg Marc
Author_Institution :
Corp. Res., ABB Switzerland Ltd., Baden, Switzerland
Abstract :
In this paper, we are concerned with eddy-current analysis based on fast boundary element methods (BEM). A novel compression and preconditioning technique, adaptive cross approximation, is used to benefit from several advantages when computing problems with highly permeable materials. Several numerical experiments have been performed with the aim to investigate the performance compared to finite element solvers. The results are validated on the TEAM benchmark problem P21.
Keywords :
boundary-elements methods; eddy currents; finite element analysis; 3D low-frequency analysis; TEAM benchmark problem P21; adaptive cross approximation; boundary element methods; eddy current analysis; finite element solvers; permeable materials; preconditioning technique; Boundary element methods; Eddy currents; Finite element methods; Integral equations; Magnetic domains; Magnetic fields; Maxwell equations; Moment methods; Permeability; Switches; Boundary elements; eddy currents; hierarchical matrices; permeability;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2010.2043514
