Large-scale analysis of eddy-current problems by the hybrid finite element-boundary element method combined with the fast multipole method

Author

Takahashi, Yasuhito ; Wakao, Shinji

Author_Institution

Dept. of Electr. Eng. & Bioscience, Waseda Univ., Tokyo

Volume

42

Issue

4

fYear

2006

fDate

4/1/2006 12:00:00 AM

Firstpage

671

Lastpage

674

Abstract

This paper shows large-scale eddy-current analysis by a hybrid finite-element and boundary-element (FE-BE) method. We introduce the fast multipole method (FMM) into the two kinds of hybrid FE-BE formulations developed by ourselves. To achieve more reduction of CPU time, we propose a novel preconditioning technique suitable for the hybrid FE-BE methods with the FMM. Furthermore, we improve the FMM calculation process in the hybrid method using magnetic field intensity. Some numerical results that demonstrate the effectiveness of these approaches are also presented

Keywords

boundary-elements methods; eddy currents; finite element analysis; magnetic fields; FE-BE method; FMM; eddy-current problems; fast multipole method; hybrid finite element-boundary element method; large-scale analysis; magnetic field intensity; Acceleration; Computational efficiency; Convergence; Electromagnetic fields; Finite element methods; Helium; Iterative methods; Large-scale systems; Magnetic analysis; Magnetic fields; Eddy-current; fast multipole method; hybrid finite-element and boundary-element method; large-scale analysis;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2006.871630

Filename

1608295