Simulation study of nonlocal plasma response in toroidal plasmas
| Project/Area Number |
26400538
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Plasma science
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| Research Institution | National Institutes for Quantum and Radiological Science and Technology (2016)
Japan Atomic Energy Agency (2014-2015) |
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Principal Investigator |
Miyato Naoaki 国立研究開発法人量子科学技術研究開発機構, 六ヶ所核融合研究所 核融合炉システム研究開発部, 上席研究員(定常) (80370477)
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| Co-Investigator(Renkei-kenkyūsha) |
YAGI Masatoshi 国立研究開発法人量子科学技術研究開発機構, 六ヶ所核融合研究所 核融合炉システム研究開発部, 次長 (70274537)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2014: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
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| Keywords | 核融合プラズマ / 非線形 / 非局所 / マルチスケール / 非局所応答 / 相空間ラグランジアン / 熱ソース / 磁化プラズマ / 微視的乱流 / ジャイロ運動論 / ジャイロ中心変換 |
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| Outline of Final Research Achievements |
Our simulation study revealed detailed mechanism of nonlocal plasma response triggered by transient particle source in tokamak plasmas. Both nonlinear couplings and toroidal couplings between long wavelength components of pressure perturbations are indispensable for the nonlocal response. Besides, we studied effects of ion micro-turbulence on the nonlocal response. It is found that the turbulence tends to prevent the nonlocal response because it rapidly dissipate the long wavelength components of pressure perturbations necessary for the nonlocal response.
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Report
(4 results)
Research Products
(16 results)
