| タイトル | Global characteristics of zonal flows generated by ion temperature gradient driven turbulence in tokamak plasmas |
| その他のタイトル | トカマクプラズマ中のイオン温度勾配駆動乱流により生成される帯状流のグローバル解析 |
| DOI | 10.11484/jaeri-research-2004-010 |
| 本文（外部サイト） | http://jolissrch-inter.tokai-sc.jaea.go.jp/pdfdata/JAERI-Research-2004-010.pdf |
| 参考URL | http://jolissrch-inter.tokai-sc.jaea.go.jp/search/servlet/search?28223 |
| 著者（日） | 宮戸 直亮; 岸本 泰明 |
| 著者（英） | Li, J. |
| 発行日 | 2004-08 |
| 発行機関など | JAEA |
| 刊行物名 | JAERI-Research 2004-010 |
| 開始ページ | 1 |
| 終了ページ | 18 |
| 刊行年月日 | 2004-08 |
| 言語 | en |
| 内容記述 | Global structure of zonal flows driven by ion temperature gradient driven turbulence in tokamak plasmas is investigated using a global electromagnetic Landau fluid code. Characteristics of the coupled system of the zonal flows and the turbulence change with the safety factor q. In a low q region stationary zonal flows are excited and suppress the turbulence effectively. Coupling between zonal flows and poloidally asymmetric pressure perturbations via a geodesic curvature makes the zonal flows oscillatory in a high q region. Also we identify energy transfer from the zonal flows to the turbulence via the poloidally asymmetric pressure perturbations in the high q region. Therefore in the high q region the zonal flows cannot quench the turbulet transport completely.
著者所属: 日本原子力研究開発機構(JAEA) |
| 資料種別 | Technical Report |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/617256 |
