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  1. 学部学科区分一覧
  2. 工学部・工学研究科
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  2. 学術雑誌論文

Extension of Numerical Matching Method to Weakly Nonlinear Evolution of Resistive MHD Modes

https://repository.lib.tottori-u.ac.jp/records/7336
https://repository.lib.tottori-u.ac.jp/records/7336
89ca490c-70a5-4120-a591-a4b0f570255c
名前 / ファイル ライセンス アクション
pfr12_pfr.12.1403025.pdf pfr12_pfr.12.1403025.pdf (955.5 kB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2022-06-30
タイトル
言語 en
タイトル Extension of Numerical Matching Method to Weakly Nonlinear Evolution of Resistive MHD Modes
言語
言語 eng
キーワード
主題 magnetic island
キーワード
主題 nonlinear theory
キーワード
主題 matched solution using finite-width inner region
キーワード
主題 resistive magnetohydrodynamics
キーワード
言語 en
主題 magnetic island
キーワード
言語 en
主題 nonlinear theory
キーワード
言語 en
主題 matched solution using finite-width inner region
キーワード
言語 en
主題 resistive magnetohydrodynamics
資源タイプ
資源タイプ journal article
著者 古川, 勝

× 古川, 勝

WEKO 4701
e-Rad 80360428
研究者総覧鳥取大学 100000919

古川, 勝

ja-Kana フルカワ, マサル

en Furukawa, Masaru

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Tokuda, Shinji

× Tokuda, Shinji

WEKO 27288

en Tokuda, Shinji

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著者所属(英)
en
Graduate School of Engineering, Tottori University
著者所属(英)
en
Research Organization for Information Science and Technology
抄録
内容記述タイプ Other
内容記述 We have extended “numerical matching method” to weakly nonlinear regime, which is relevant for the Rutherford regime of magnetic island evolution in normal magnetic shear plasmas as well as for reversed magnetic shear plasmas to which the Rutherford theory does not apply. The numerical matching method was developed for linear stability analyses of resistive magnetohydrodynamics (MHD) modes by utilizing an inner region with a finite width, that removes difficulties inherent in its numerical applications of the traditional matched asymptotic expansion. The extended method is applied to low-beta reduced MHD simulations of magnetic island evolution in cylindrical plasmas with normal and reversed magnetic shear profiles. The numerical results agree well with fully nonlinear simulation without using the matching method from the linear to weakly nonlinear regimes continuously. Since the nonlinear equation is solved only in the inner region of a finite width, the computational cost is reduced, which enables us to include more detailed physics effects. Our extended method therefore makes a significant contribution in the MHD analysis of magnetic island evolution beyond the restriction in the conventional Rutherford theory.
書誌情報 PLASMA AND FUSION RESEARCH
en : PLASMA AND FUSION RESEARCH

巻 12, p. 1403025, 発行日 2017-06-15
出版者
出版者 Japan Society of Plasma Science and Nuclear Fusion Research
ISSN
収録物識別子タイプ ISSN
収録物識別子 18806821
DOI
関連タイプ isIdenticalTo
識別子タイプ DOI
関連識別子 10.1585/pfr.12.1403025
権利
権利情報 (C) 2017 The Japan Society of Plasma Science and Nuclear Fusion Research
情報源
関連名称 Furukawa Masaru, Tokuda Shinji. Extension of Numerical Matching Method to Weakly Nonlinear Evolution of Resistive MHD Modes. PLASMA AND FUSION RESEARCH. 2017. 12. doi:10.1585/pfr.12.1403025
関連サイト
識別子タイプ DOI
関連識別子 https://doi.org/10.1585/pfr.12.1403025
関連名称 https://doi.org/10.1585/pfr.12.1403025
著者版フラグ
出版タイプ VoR
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