| アイテムタイプ |
itemtype_ver1(1) |
| 公開日 |
2025-12-01 |
| タイトル |
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|
タイトル |
Decomposition of abrupt transport phenomena in Kelvin–Helmholtz turbulence by using multi-field singular value decomposition |
|
言語 |
en |
| 著者 |
Kodahara, T
Sasaki, M
Kawachi, Y
Kobayashi, T
Kosuga, Y
Arakawa, H
Yamada, T
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| アクセス権 |
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|
アクセス権 |
embargoed access |
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アクセス権URI |
http://purl.org/coar/access_right/c_f1cf |
| 権利 |
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|
権利情報 |
This is the Accepted Manuscript version of an article accepted for publication in [Plasma Physics and Controlled Fusion]. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at [https://doi.org/10.1088/1361-6587/add594] |
|
言語 |
en |
| 権利 |
|
|
権利情報 |
“This Accepted Manuscript is available for reuse under a CC BY-NC-ND licence after the 12 month embargo period provided that all the terms of the licence are adhered to” |
|
言語 |
en |
| 内容記述 |
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|
内容記述タイプ |
Abstract |
|
内容記述 |
A method of decomposition of abrupt transport phenomena in magnetized plasmas is demonstrated by using a data-driven science method. The set of turbulence data is produced for the Kelvin–Helmholtz turbulence in a cylindrical plasma by using a numerical nonlinear simulation, which is based on an extended Hasegawa–Wakatani model. The obtained turbulence state is accompanied by limit-cycle-like dynamics, and the abrupt particle transport phenomena is observed. We apply a singular value decomposition to the turbulence data with a clustering method, and the turbulence state is decomposed into background, zonal flows, and coherent and incoherent modes. The contribution of these decomposed modes to the particle transport is evaluated for all the combinations of the modes. It is found that the abrupt transport is mainly driven by the incoherent mode, and that it determines the spatio-temporal scale of the abrupt transport for the presented case. |
|
言語 |
en |
| 出版者 |
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|
出版者 |
IOP publishing |
|
言語 |
en |
| 言語 |
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|
言語 |
eng |
| 資源タイプ |
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資源タイプresource |
http://purl.org/coar/resource_type/c_6501 |
|
タイプ |
journal article |
| 出版タイプ |
|
|
出版タイプ |
AM |
|
出版タイプResource |
http://purl.org/coar/version/c_ab4af688f83e57aa |
| 関連情報 |
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|
関連タイプ |
isVersionOf |
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|
識別子タイプ |
DOI |
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|
関連識別子 |
https://doi.org/10.1088/1361-6587/add594 |
| 収録物識別子 |
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収録物識別子タイプ |
PISSN |
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収録物識別子 |
0741-3335 |
| 書誌情報 |
en : Plasma Physics and Controlled Fusion
巻 67,
号 6,
p. 065012,
発行日 2025-06
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| ファイル公開日 |
|
|
日付 |
2026-06-01 |
|
日付タイプ |
Available |
ppcf_kodahara_mod.pdf (2 MB)
