WEKO3
-
RootNode
アイテム
A Triggering Mechanism of Fast Crash in Sawtooth Oscillation
http://hdl.handle.net/10655/2953
http://hdl.handle.net/10655/295354d8b65e-35d7-48ab-8324-75f32a8106a9
| Item type | 研究報告書 / Research Paper(1) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 公開日 | 2010-02-05 | |||||||||
| タイトル | ||||||||||
| タイトル | A Triggering Mechanism of Fast Crash in Sawtooth Oscillation | |||||||||
| 言語 | en | |||||||||
| 言語 | ||||||||||
| 言語 | eng | |||||||||
| キーワード | ||||||||||
| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | tokamak | |||||||||
| キーワード | ||||||||||
| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | sawtooth oscillation | |||||||||
| キーワード | ||||||||||
| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | computer simulation | |||||||||
| キーワード | ||||||||||
| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | magnetohydrodynamics | |||||||||
| キーワード | ||||||||||
| 言語 | en | |||||||||
| 主題Scheme | Other | |||||||||
| 主題 | magnetic reconnection | |||||||||
| 資源タイプ | ||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_18ws | |||||||||
| 資源タイプ | research report | |||||||||
| 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 |
"Watanabe, K.
× "Watanabe, K.
× Sato, T."
|
|||||||||
| 抄録 | ||||||||||
| 内容記述タイプ | Abstract | |||||||||
| 内容記述 | "Full-torus, compressible, resistive MHD simulations have been performed to study the mechanism of fast crash in the sawtooth oscillation. The simulation results reveal that the q value, which at first decreases in accordance with current pea,king subject to ohmic heating, starts increasing in the q < l region due to strong excitation of nonlinear modes and becomes flattened. When the q profile is flattened in the q < 1 region, the plasma flow pushes the magnetic surface radially outwards and the poloidal magnetic field lines are driven to reconnect rapidly with each other across the q=1 surface. Consbquently, the central hot plasma is pushed out towards the wall to crash its confinement. It turns out that the m=1 plasma flow induced by the kink instability, rather than the pressure gradient, plays a decisive role in the crash process." | |||||||||
| 書誌情報 |
en : Research Report NIFS-Series 発行日 1992-09-01 |
|||||||||
| 報告書番号 | ||||||||||
| NIFS-167 | ||||||||||
| ISSN | ||||||||||
| 収録物識別子タイプ | ISSN | |||||||||
| 収録物識別子 | 0915-633X | |||||||||
Share
Cite as
"Watanabe, K., Sato, T.", 1992, A Triggering Mechanism of Fast Crash in Sawtooth Oscillation.
Loading...
