A study on multiply connected domain processing methods in magnetostatic field analysis by boundary integral equations

Kengo Ryu, Shinji Wakao, Yasuhito Takahashi, Kazuhisa Ishibashi, Koji Fujiwara

    Research output: Contribution to journalArticle

    Abstract

    It is difficult to analyze magnetostatic field problems with multiply connected domains by the direct boundary element method (BEM). On the other hand, there are two methods which can solve magnetostatic field problems with multiply connected domains in double layer charge (DLC) formulation. One uses imaginary loop current to calculate exciting scalar potentials and the other uses the direct BEM to calculate exciting scalar potentials. Thus, in this study, we expand the application scope of the above methods to the direct BEM. The direct BEM is widely used with other analysis methods such as the finite element method (FEM). In that respect, it is also effective to be able to analyze magnetostatic field problems with multiply connected domains by the direct BEM. In addition, results comparing the two methods to analyze multiply connected problems in both the DLC formulation and the direct BEM have not been reported. Therefore, we compare those and systematically clarify their characteristics by calculating a toroidal core model.

    Original languageEnglish
    Pages (from-to)132-137
    Number of pages6
    JournalIEEJ Transactions on Power and Energy
    Volume137
    Issue number2
    DOIs
    Publication statusPublished - 2017

    Keywords

    • Boundary element method
    • Boundary integral equation
    • Double layer method
    • Magnetostatic field
    • Multiply connected domain

    ASJC Scopus subject areas

    • Energy Engineering and Power Technology
    • Electrical and Electronic Engineering

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