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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/733689ca490c-70a5-4120-a591-a4b0f570255c
| 名前 / ファイル | ライセンス | アクション |
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pfr12_pfr.12.1403025.pdf (955.5 kB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
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| 公開日 | 2022-06-30 | |||||
| タイトル | ||||||
| タイトル | Extension of Numerical Matching Method to Weakly Nonlinear Evolution of Resistive MHD Modes | |||||
| 言語 | en | |||||
| 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× Tokuda, Shinji |
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| 著者所属（英） | ||||||
| 言語 | en | |||||
| 値 | Graduate School of Engineering, Tottori University | |||||
| 著者所属（英） | ||||||
| 言語 | en | |||||
| 値 | 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 |
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| 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 | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
