Global structure change of toroidal plasmas including magnetic islands in pressure increasing phase
| Project/Area Number |
22560822
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Nuclear fusion studies
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| Research Institution | National Institute for Fusion Science |
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Principal Investigator |
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| Research Collaborator |
CARRERAS Benjamin A.
SAITO Kinya
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| Project Period (FY) |
2010-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2014: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2013: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2012: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2011: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2010: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
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| Keywords | 核融合プラズマ / ヘリオトロン / 数値シミュレーション / 電磁流体力学 / 圧力駆動型不安定性 / 磁気島 / ベータ値 / 圧力駆動型モード / 共鳴摂動磁場 / マルチスケールスキーム / 簡約化MHD方程式 / 非線型シミュレーション / 自己組織化 / 簡約化方程式 / 非線形シミュレーション |
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| Outline of Final Research Achievements |
In toroidal fusion plasmas, the structure of the plasma pressure and the magnetic field is changed by the nonlinear evolution of instabilities. The increase of the plasma pressure, the change of the background field and the application of the peturebed field affect such global structure chnage. In this study, we analyzed these effects by means of the numerical simulation based on Magnetohydrodynamic equations. We have obtained that the continuous self-organization can contribute to the stabilizaion in the increase of the plasma pressure, that a partial collapse is repeated by the change of the background field and the plasma heating, and that the magnetic island generated by the resonant magnetic perturbation causes the three-dimensional deformation of the equilibrium pressure profile which changes the mode structure of the pressure driven instability.
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Report
(6 results)
Research Products
(57 results)
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[Presentation] ヘリオトロンプラズマにおける圧力駆動型モードに対するRMPの影響2015
Author(s)
K. Ichiguchi, Y. Suzuki, M. Sato, Y. Todo, T. Nicolas, S. Sakakibara, S. Ohdachi, Y. Narushima, and B.A.Carreras
Organizer
第４回IFERC-CSC研究会
Place of Presentation
航空会館（東京）
Year and Date
2015-02-19 – 2015-02-20
Related Report
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[Presentation] Effects of RMP on Pressure Driven Modes in Heliotron Plasma2014
Author(s)
K. Ichiguchi, Y. Suzuki, M. Sato, Y. Todo, T. Nicolas, B. A. Carreras, S.Sakakibara, S. Ohdachi, and Y. Narushima
Organizer
12th Asia Pacific Plasma Theory Conference and Japan-Korea Workshop on “Modeling and Simulation of Magnetic Fusion Plasmas"
Place of Presentation
Jeju Island, Korea
Year and Date
2014-07-01 – 2014-07-04
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