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

Yasuhito Takahashi, Shinji Wakao

    Research output: Contribution to journalArticle

    20 Citations (Scopus)

    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.

    Original languageEnglish
    Pages (from-to)671-674
    Number of pages4
    JournalIEEE Transactions on Magnetics
    Volume42
    Issue number4
    DOIs
    Publication statusPublished - 2006 Apr

    Fingerprint

    boundary element method
    Boundary element method
    Eddy currents
    eddy currents
    multipoles
    Insulator Elements
    Program processors
    preconditioning
    Magnetic fields
    magnetic flux
    formulations

    Keywords

    • Eddy-current
    • Fast multipole method
    • Hybrid finite-element and boundary-element method
    • Large-scale analysis

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering
    • Physics and Astronomy (miscellaneous)

    Cite this

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    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.",
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