Study on controllability of fusion plasma by fueling in self-regulating system
| Project/Area Number |
26420863
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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 |
Nuclear fusion studies
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| Research Institution | National Institutes for Quantum and Radiological Science and Technology (2016-2017)
Japan Atomic Energy Agency (2014-2015) |
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Principal Investigator |
TAKENAGA Hidenobu 国立研究開発法人量子科学技術研究開発機構, 核融合エネルギー研究開発部門, 室長代理(定常) (60354601)
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| Co-Investigator(Kenkyū-buntansha) |
吉田 麻衣子 国立研究開発法人量子科学技術研究開発機構, 那珂核融合研究所 先進プラズマ研究部, 上席研究員(定常) (20391261)
坂本 宜照 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, グループリーダー(定常) (30354583)
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| Project Period (FY) |
2014-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2016: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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| Keywords | 核融合 / 炉心プラズマ / 燃料供給 / ガスジェット / CIP法 / 粒子バランス / コールドパルス / トロイダル回転速度 / ＣＩＰ法 / 燃料供給シナリオ |
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| Outline of Final Research Achievements |
In order to optimize a fueling scenario in fusion reactor, modelling of gas-jet injection and analysis of plasma responses to the injection are performed. For the modelling, computer simulations of 3D fluid equation using the CIP method have been developed. Detailed diffusion process of cold dense material like an injected gas-jet is calculated. For the analysis of plasma responses to the gas-jet injection, time evolution of the ion temperature is analyzed in the weak shear plasma of JT-60 with the internal transport barrier (ITB). In the case that thermal diffusivity is assumed to increase by about 20% inside the ITB and decrease by about 5% outside the ITB, the analysis result well reproduces the experimental result. The toroidal rotation velocity also responds to the gas-jet injection and recovers faster than the ion temperature.
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Report
(5 results)
Research Products
(21 results)
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[Journal Article] Magnetic shear effects on plasma transport and turbulence at high electron to ion temperature ratio in DIII-D and JT-60U plasmas2017
Author(s)
M. Yoshida, G. R. McKee, M. Murakami, B. A. Grierson, M. Nakata, E. M. Davis, A. Marinoni, M. Ono, T. L. Rhodes, C. Sung, L. Schmitz, C. C. Petty9, J.R. Ferron, F. Turco, A. M. Garofalo, C. T. Holcomb, C. M. Collins, W. M. Solomon
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Journal Title
Nuclear Fusion
Volume: 57
Issue: 5
Pages: 1-10
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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[Presentation] Physics Approach to Forecasting DEMO Plasma2016
Author(s)
Y. Sakamoto, K. Tobita, N. Asakura, R. Hiwatari, Y. Someya, H. Utoh, S. Tokunaga, Y. Homma, N. Hayashi, S. Ide, Joint special design team for DEMO
Organizer
4th IAEA DEMO Programme Workshop
Place of Presentation
Karlsruhe Institute of Technology, Karlsruhe, Germany
Year and Date
2016-11-15
Related Report
Int'l Joint Research
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[Presentation] Magnetic shear effects on plasma transport and turbulence at high electron to ion temperature ratio in DIII-D and JT-60U plasmas2016
Author(s)
M. Yoshida, G. R. McKee, M. Murakami, C. M. Collins, E. M. Davis, J. R. Ferron, A. M. Garofalo, B. A. Grierson, C. T. Holcomb, A. Marinoni, M. Nakata, M. Ono, C. C. Petty, T. L. Rhodes, L. Schmitz, W. M. Solomon, C. Sung, F. Turco
Organizer
26th IAEA Fusion Energy Conference
Place of Presentation
京都府京都市 国立京都国際会館
Year and Date
2016-10-17
Related Report
Int'l Joint Research
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[Presentation] Progress of DEMO physics design study in Japan2016
Author(s)
Y. Sakamoto, H. Utoh, H. Takase, K. Hoshino, N. Asakura, T. Wakatsuki, S. Tokunaga, Y. Homma, N. Aiba, A. Matsuyama, N. Hayashi, S. Ide, K. Tobita and Joint Special Design Team for Fusion DEMO
Organizer
29th Symposium on Fusion Technology
Place of Presentation
the Prague Congress Centre, Prague, Czech Republic
Year and Date
2016-09-05
Related Report
Int'l Joint Research
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[Presentation] プラズマの密度限界2016
Author(s)
竹永秀信
Organizer
第３回運転制御に関するシンポジウム
Place of Presentation
核融合科学研究所（岐阜県、土岐市）
Year and Date
2016-02-18
Related Report
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[Presentation] Response of ion and electron temperatures, electron density and toroidal rotation to electron cyclotron heating in JT-60U2014
Author(s)
M. Yoshida, M. Honda, M. Nakata, E. Narita, H. Urano, T. Kobayashi, N. Miyato, N. Hayashi, H. Takenaga, S. Ide and Y. Kamada
Organizer
25th IAEA Fusion Energy Conference
Place of Presentation
St. Petersburg, Russian Federation
Year and Date
2014-10-13 – 2014-10-18
Related Report
