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Stabilization of kink/peeling modes by coupled rotation and ion diamagnetic drift effects in quiescent H-mode plasmas in DIII-D and JT-60U
https://repo.qst.go.jp/records/84790
https://repo.qst.go.jp/records/8479001c7cb56-ed2d-40bb-9d42-ad5ec4c548fe
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2021-12-27 | |||||
タイトル | ||||||
タイトル | Stabilization of kink/peeling modes by coupled rotation and ion diamagnetic drift effects in quiescent H-mode plasmas in DIII-D and JT-60U | |||||
言語 | ||||||
言語 | eng | |||||
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 | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
Nobuyuki, Aiba
× Nobuyuki, Aiba× Chen, Xi× Kensaku, Kamiya× Mitsuru, Honda× H. Osborne, Thomas× H. Burrell, Keith× B. Snyder, Phillp× Nobuyuki, Aiba× Kensaku, Kamiya |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Magnetohydrodynamic stability at the edge pedestal in several quiescent H-mode (QH-mode) plasmas in DIII-D and JT-60U experiments was analyzed by considering plasma rotation and ion diamagnetic drift effects. It was identified that a kink/peeling mode, which is a prime candidate for a trigger of edge harmonic oscillation in QH-mode, is stabilized by plasma rotation when considering the ion diamagnetic drift simultaneously in both experiments. The stabilizing effect by rotation becomes more effective in case using the rotation profile of the main ion species evaluated by assuming radial force balance. In addition, when inverting the rotation direction, it was found that the kink/peeling mode is more stabilized when considering the rotation of the main ion species, though the mode is less stabilized by the rotation of impurity ion species. The result implies that the kink/peeling mode stability in QH-mode plasmas is sensitive to how the rotation profile is evaluated, but it is shown that a qualitative trend stabilizing the kink/peeling mode by rotation can be reproduced with the poloidal rotation profile of an impurity predicted numerically based on the neoclassical theory. |
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書誌情報 |
Nuclear Fusion 巻 61, 号 12, p. 126044, 発行日 2021-12 |
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出版者 | ||||||
出版者 | IoP Publishing, International Atomic Energy Agency, EURATOM | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0029-5515 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1088/1741-4326/ac318e | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://iopscience.iop.org/article/10.1088/1741-4326/ac318e/meta |