Plasma flow injection for self-organization studies of steady statespherical tokamaks
Project/Area Number |
22360391
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Nuclear fusion studies
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Research Institution | University of Hyogo |
Principal Investigator |
NAGATA Masayoshi 兵庫県立大学, 大学院・工学研究科, 教授 (00192237)
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Co-Investigator(Kenkyū-buntansha) |
FUKUMOTO Naoyuki 兵庫県立大学, 大学院・工学研究科, 准教授 (90275305)
KIKUCHI Yusuke 兵庫県立大学, 大学院・工学研究科, 准教授 (00433326)
KANKI Takashi 海上保安大学校, 教授 (40524468)
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Co-Investigator(Renkei-kenkyūsha) |
ZUSHI Hideki 九州大学応用力学研究所, 教授 (20127096)
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Project Period (FY) |
2010 – 2012
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Project Status |
Completed (Fiscal Year 2012)
|
Budget Amount *help |
¥15,990,000 (Direct Cost: ¥12,300,000、Indirect Cost: ¥3,690,000)
Fiscal Year 2012: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2011: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2010: ¥9,360,000 (Direct Cost: ¥7,200,000、Indirect Cost: ¥2,160,000)
|
Keywords | 炉心プラズマ / 球状トカマク / 同軸ヘリシティ入射 / ダイナモ / 球状トーラス / ダイナモ電流駆動 / アルフヴェン波 / シアフロー / 磁気ヘリシティ / プラズマフロー / 磁気リコネクション / 電流立ち上げと駆動 / プラズマ流 / 緩和現象 / 乱流輸送 / 2流体効果 |
Research Abstract |
The purpose of this research toward realization of an economic fusion reactor is to verify usefulness of the multi-pulsing Coaxial Helicity Injection (CHI) method which could maintain high β spherical tokamaks in steady state. We have demonstrated current amplification, extension of the plasma life time and increase in the ion temperature by the double-pulsing CHI on HIST. Furthermore, we have investigated self-organization of the poloidal flow shear, generation of the negative radial electric field and dynamo current drive mechanism including two fluid effects. The results are confirmed with help of 3D-MHD computational simulation.
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Report
(4 results)
Research Products
(27 results)
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[Presentation] Dynamo current drive via low-frequency waves in the HIST helicity-driven spherical torus plasma2012
Author(s)
M. Nagata, T. Hanao, H. Hirono, T. Hyobu, M. Ishihara, K. Ito, T. Nakayama, K. Matsumoto, Y. Kikuchi and N. Fukumoto
Organizer
39th EPS Conference on Plasma Physics & 16th International Congress on Plasma Physics, P5.072
Place of Presentation
Stockholm, Sweden
Related Report
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[Presentation] Propagation analysis of the helicity-drive Alfven wave in the HIST spherical torus plasmas2012
Author(s)
T. Hyobu, T. Hanao, H. Hirono, K. Ito, K. Matsumoto, T. Nakayama, Y. Kikuchi, N. Fukumoto, M. Nagata
Organizer
Bull. Am. Phys. Soc.,the 54th Annual Meeting of the Division of Plasma Physics, PP8-65
Place of Presentation
Providence, USA
Related Report
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[Presentation] Measurements of dynamo electric field and momentum transport induced by fluctuations on HIST2012
Author(s)
H. Hirono, T. Hanao, T. Hyobu, K. Ito, K. Matsumoto, T. Nakayama, Y. Kikuchi, N. Fukumoto, M. Nagata
Organizer
Bull. Am. Phys. Soc.,the 54th Annual Meeting of the Division of Plasma Physics, PP8-64
Place of Presentation
Providence, USA
Related Report
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[Presentation] Investigation of internal magnetic structures and comparison with two-fluid equilibrium configurations in the multi-pulsing CHI on HIST2012
Author(s)
T. Nakayama, T. Hyobu, T. Hanao, H. Hirono, K. Ito, K. Matsumoto, Y. Kikuchi, N. Fukumoto, M. Nagata
Organizer
Bull. Am. Phys. Soc.,the 54th Annual Meeting of the Division of Plasma Physics, PP8-66
Place of Presentation
Providence, USA
Related Report
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[Presentation] Measurements of Doppler-ion temperature and flow in the multi-pulsing CHI experiment on HIST2012
Author(s)
T. Hanao, M. Ishihara, H. Hirono, T. Hyobu, K. Ito, K. Matsumoto, T. Nakayama, Y. Kikuchi, N. Fukumoto, M. Nagata
Organizer
Bull. Am. Phys. Soc.,the 54th Annual Meeting of the Division of Plasma Physics, PP8-67
Place of Presentation
Providence, USA
Related Report
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[Presentation] Characteristics of Muti-pulsing CHI driven ST plasmas on HIST2011
Author(s)
M. Ishihara, T. Hanao, K. Ito, K. Matsumoto,T. Higashi, Y. Kikuchi, N. Fukumoto, M. Nagata
Organizer
Bull. Am. Phys. Soc., the 53rd Annual Meeting of the Division of Plasma Physics, CP9.105
Place of Presentation
Salt Lake City, USA
Related Report
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[Presentation] Equilibrium fitting analysis and propagation of magnetic fluctuations in the Multi-pulsing HIST plasmas2011
Author(s)
K. Matsumoto, T. Hanano, K. Ito, M. Ishihara, T. Higashi, Y. Kikuchi, N. Fukumoto, M. Nagata
Organizer
Bull. Am. Phys. Soc., the 53rd Annual Meeting of the Division of Plasma Physics, CP9.106
Place of Presentation
Salt Lake City, USA
Related Report
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[Presentation] Measurements of dynamo effect on double-CHI pulse ST plasmas on HIST2011
Author(s)
K. Ito, T. Hanao, M. Ishihara, K. Matsumoto, T. Higashi, Y. Kikuchi, N. Fukumoto, M. Nagata
Organizer
Bull. Am. Phys. Soc., the 53rd Annual Meeting of the Division of Plasma Physics, CP9.107
Place of Presentation
Salt Lake City, USA
Related Report
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