WEKO3
-
RootNode
アイテム
Evaluation of abrupt energy transfer among turbulent plasma structures using singular value decomposition
http://hdl.handle.net/10655/00012803
http://hdl.handle.net/10655/00012803ee42abaa-231a-4642-be87-b32cd9531a39
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
Plasma.Phys.Contr.Fusion_63_025004 (1.9 MB)
|
.png)
|
| Item type | 学術雑誌論文 / Journal Article(1) | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 公開日 | 2021-12-21 | |||||||||||||||||
| タイトル | ||||||||||||||||||
| タイトル | Evaluation of abrupt energy transfer among turbulent plasma structures using singular value decomposition | |||||||||||||||||
| 言語 | ||||||||||||||||||
| 言語 | eng | |||||||||||||||||
| キーワード | ||||||||||||||||||
| 主題Scheme | Other | |||||||||||||||||
| 主題 | structural formation | |||||||||||||||||
| キーワード | ||||||||||||||||||
| 主題Scheme | Other | |||||||||||||||||
| 主題 | zonal flow | |||||||||||||||||
| キーワード | ||||||||||||||||||
| 主題Scheme | Other | |||||||||||||||||
| 主題 | Kelvin–Helmholtz turbulence | |||||||||||||||||
| キーワード | ||||||||||||||||||
| 主題Scheme | Other | |||||||||||||||||
| 主題 | singular value decomposition | |||||||||||||||||
| キーワード | ||||||||||||||||||
| 主題Scheme | Other | |||||||||||||||||
| 資源タイプ | ||||||||||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||||||||||
| 資源タイプ | journal article | |||||||||||||||||
| 著者 |
Sasaki, Makoto
× Sasaki, Makoto
× Kobayashi, Tatsuya
× DENDY, R.O.
× Kawachi, Y.
× Arakawa, H.
× INAGAKI, Shigeru
|
|||||||||||||||||
| 著者ID | ||||||||||||||||||
| 内容記述タイプ | Other | |||||||||||||||||
| 内容記述 | 0000-0001-6835-1569 | |||||||||||||||||
| 抄録 | ||||||||||||||||||
| 内容記述タイプ | Abstract | |||||||||||||||||
| 内容記述 | A method to quantify the energy transfer among turbulent structures using singular value decomposition (SVD) is presented. We apply the method to numerical turbulence data obtained from a global plasma simulation using the Hasegawa–Wakatani fluid model, in which the Kelvin–Helmholtz instability plays a dominant role. Using the SVD method, the electrostatic potential is decomposed into a background potential deformation, a zonal flow, a coherent mode and an intermittent structure. Thus there are four key structures, as distinct from the three found in conventional theory. The kinetic energy of each structure is evaluated, and the limit cycle among them is obtained. In the limit cycle, an abrupt change of the background is found to be synchronised with the period of the zonal flow. The energy transfer function of each turbulence structure, which is defined on the basis of a vorticity equation, is evaluated. This then provides physical understanding of how the limit cycle is sustained by dynamical changes in the energy transfer among structures over the its period. In addition, it is shown that the abrupt deformation of the background is caused by the non-linear self-coupling of the intermittent structure. | |||||||||||||||||
| 書誌情報 |
Plasma Physics and Controlled Fusion 巻 63, 号 2, p. 025004, 発行日 2020-12-08 |
|||||||||||||||||
| 出版者 | ||||||||||||||||||
| 出版者 | IOP Publishing | |||||||||||||||||
| ISSN | ||||||||||||||||||
| 収録物識別子タイプ | ISSN | |||||||||||||||||
| 収録物識別子 | 13616587 | |||||||||||||||||
| 書誌レコードID | ||||||||||||||||||
| 収録物識別子タイプ | NCID | |||||||||||||||||
| 収録物識別子 | AA12472556 | |||||||||||||||||
| DOI | ||||||||||||||||||
| 関連タイプ | isVersionOf | |||||||||||||||||
| 識別子タイプ | DOI | |||||||||||||||||
| 関連識別子 | 10.1088/1361-6587/abcb46 | |||||||||||||||||
| 権利 | ||||||||||||||||||
| 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/abcb46. | |||||||||||||||||
| 情報源 | ||||||||||||||||||
| 関連名称 | Citation M Sasaki et al 2021 Plasma Phys. Control. Fusion 63 025004 | |||||||||||||||||
| 関連サイト | ||||||||||||||||||
| 識別子タイプ | DOI | |||||||||||||||||
| 関連識別子 | https://doi.org/10.1088/1361-6587/abcb46 | |||||||||||||||||
| 関連名称 | Publisher version | |||||||||||||||||
| 著者版フラグ | ||||||||||||||||||
| 出版タイプ | AM | |||||||||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||||||||||||||
| NAIS | ||||||||||||||||||
| ||| | ||||||||||||||||||
