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Theoretical and numerical analyses for suppressing or mitigating edge localized mode in DEMO

Research Project

Project/Area Number 15K06656
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Nuclear fusion studies
Research InstitutionNational Institutes for Quantum and Radiological Science and Technology (2016-2017)
Japan Atomic Energy Agency (2015)

Principal Investigator

Aiba Nobuyuki  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) (20414584)

Co-Investigator(Kenkyū-buntansha) 松永 剛  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 トカマクシステム技術開発部, グループリーダー(定常) (10391260)
神谷 健作  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) (60360426)
浦野 創  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) (70391258)
Co-Investigator(Renkei-kenkyūsha) MATSUYAMA Akinobu  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六ヶ所核融合研究所 核融合炉システム研究開発部, 主任研究員 (90581075)
Project Period (FY) 2015-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywordsエッジローカライズモード / 拡張MHDモデル / トカマク / 磁場閉じ込め核融合 / トカマクプラズマ / MHD安定性 / ELM
Outline of Final Research Achievements

We have developed a new physics model and numerical code, MINERVA-DI, to evaluate the stability of edge localized mode (ELM). This code realizes to investigate the impacts of plasma rotation and the ion diamagnetic drift effect on the stability of short-wavelength ballooning mode, which is one of the origin of mitigated ELM. It was found that the ion diamagnetic drift effect, which usually stabilizes the mode, is found to be negligible when the rotation frequency is large compared to the ion diamagnetic drift frequency.
Based on the result, we have performed the quantitative analyses of the stability of ELMs in JT-60U (Japan) and JET (EU) experiments. It was found that the rotation affects the trigger condition of small and large ELMs observed in these experiments.

Report

(4 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Research-status Report
  • 2015 Research-status Report
  • Research Products

    (19 results)

All 2018 2017 2016 2015 Other

All Int'l Joint Research (3 results) Journal Article (10 results) (of which Int'l Joint Research: 7 results,  Peer Reviewed: 6 results,  Open Access: 1 results,  Acknowledgement Compliant: 2 results) Presentation (6 results) (of which Int'l Joint Research: 3 results,  Invited: 2 results)

  • [Int'l Joint Research] カラム核融合研究センター(英国)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] カラム核融合研究センター(英国)

    • Related Report
      2016 Research-status Report
  • [Int'l Joint Research] カラム核融合研究センター(英国)

    • Related Report
      2015 Research-status Report
  • [Journal Article] Analysis of ELM stability with extended MHD models in JET, JT-60U and future JT-60SA tokamak plasmas2018

    • Author(s)
      N Aiba, S Pamela, M Honda, H Urano, C Giroud, E Delabie, L Frassinetti, I Lupelli, N Hayashi, G Huijsmans, the JET Contributors and JT-60SA Research Unit
    • Journal Title

      Plasma Physics and Controlled Fusion

      Volume: 60 Issue: 1 Pages: 014032-014032

    • DOI

      10.1088/1361-6587/aa8bec

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Numerical analysis of ELM stability with rotation and ion diamagnetic drift effects in JET2017

    • Author(s)
      N. Aiba, C. Giroud, M. Honda, E. Delabie, S. Saarelma, L. Frassinetti, I. Lupelli, F.J. Casson, S. Pamela, H. Urano, C.F. Maggi and JET Contributors
    • Journal Title

      Nuclear Fusion

      Volume: 57 Issue: 12 Pages: 126001-126001

    • DOI

      10.1088/1741-4326/aa8178

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Impact of ion diamagnetic drift on MHD stability at edge pedestal in JT-60U rotating plasmas2017

    • Author(s)
      N. Aiba, M. Honda, K. Kamiya
    • Journal Title

      Nuclear Fusion

      Volume: 57 Issue: 2 Pages: 022011-022011

    • DOI

      10.1088/0029-5515/57/2/022011

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Journal Article] Diamagnetic MHD Equations for Plasmas with Fast Flow and its Application to ELM Analysis in JT-60U and JET-ILW2017

    • Author(s)
      N. Aiba, C. Giroud, M. Honda, E. Delabie, S. Saarelma, L. Frassinetti, S. Pamela, H. Urano, C. Maggi
    • Journal Title

      Proc. 26th IAEA Fusion Energy Conf., 2016, Kyoto, CD-ROM (IAEA, Vienna) file TH/8-1 (2016)

      Volume: 印刷中

    • Related Report
      2016 Research-status Report
    • Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Global Stabilization Effect of Shafranov Shift on the Edge Pedestal Plasmas in JET and JT-60U2017

    • Author(s)
      H. Urano, S. Saarelma, L. Frassinetti, N. Aiba, C. Maggi, I. Chapman, I. Lupelli, C. Challis, M. Leyland, M. Beurskens, K. Kamiya, C. Giroud, S. Pamela
    • Journal Title

      Proc. 26th IAEA Fusion Energy Conf., 2016, Kyoto, CD-ROM (IAEA, Vienna) file EX/3-4 (2016)

      Volume: 印刷中

    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Journal Article] Progress in Understanding the Role of Low-Z Impurity in the Confinement in JET-ILW and in JET-C Plasmas2017

    • Author(s)
      C. Giroud, N. Aiba, S. Brezinsek, A. Chankin, E. Delabie, L. Frassinetti, J. Hillesheim, S. Pamela, S. Wiesen, C. Maggi, H. Urano, P. Drewelow, M. Leyland, D. Moulton, and S. Menmuir
    • Journal Title

      Proc. 26th IAEA Fusion Energy Conf., 2016, Kyoto, CD-ROM (IAEA, Vienna) file TH/8-2 (2016)

      Volume: 印刷中

    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Journal Article] Multimachine Modelling of ELMs and Pedestal Confinement:From Validation to Prediction2017

    • Author(s)
      S. Pamela, G. Huijsmans, M. Hoelzl, C. Giroud, S. Saarelma, S. Futatani, H. Urano, M. Becoulet, I. Lupelli, C. Maggi, C. Roach, I. Chapman, A. Kirk, J. Harrison, L. Frassinetti, D. Dickinson, N. Aiba, T. Eich, A. Lessig, and F. Orain
    • Journal Title

      Proc. 26th IAEA Fusion Energy Conf., 2016, Kyoto, CD-ROM (IAEA, Vienna) file TH/8-2 (2016)

      Volume: 印刷中

    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Journal Article] Impact of ion diamagnetic drift on ideal ballooning mode stability in rotating tokamak plasmas2016

    • Author(s)
      N. Aiba
    • Journal Title

      Plasma Physics and Controlled Fusion

      Volume: 58 Issue: 4 Pages: 045020-045020

    • DOI

      10.1088/0741-3335/58/4/045020

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Dependence of pedestal structure on collisionality at fixed beta in JT-60U2015

    • Author(s)
      H. Urano, N. Aiba, K. Kamiya, Y. Kamada and the JT-60 Team
    • Journal Title

      Nuclear Fusion

      Volume: 56 Issue: 1 Pages: 016005-016005

    • DOI

      10.1088/0029-5515/56/1/016005

    • Related Report
      2015 Research-status Report
    • Peer Reviewed
  • [Journal Article] Progress at JET in integrating ITER-relevant core and edge plasmas within the constraints of an ITER-like wall2015

    • Author(s)
      C. Giroud, J. Jachmich, P. Jacquet, A. Jarvinen, E. Lerche, F. Rimini, L. Aho-Mantila, N. Aiba, et al.
    • Journal Title

      Plasma Physics and Controlled Fusion

      Volume: 57 Issue: 3 Pages: 035004-035004

    • DOI

      10.1088/0741-3335/57/3/035004

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] MHDモデルの拡張によるエッジローカライズモード発生条件の解明・予測2018

    • Author(s)
      相羽 信行
    • Organizer
      第23回NEXT研究会
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] Analysis of ELM stability with extended MHD models in existing and future JT-60SA plasmas2017

    • Author(s)
      N Aiba, S Pamela, M Honda, H Urano, C Giroud, E Delabie, L Frassinetti, I Lupelli, N Hayashi, G Huijsmans, the JET Contributors and JT-60SA Research Unit
    • Organizer
      44th European Physics Society Conference on Plasma Physics
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] JET-ILWにおけるELM安定性に対するプラズマ回転・イオン反磁性ドリフト効果の影響2016

    • Author(s)
      N. Aiba, C. Giroud, M. Honda, E. Delabie, S. Saarelma, I. Lupelli, L. Frassinetti
    • Organizer
      第33回プラズマ・核融合学会年会
    • Place of Presentation
      東北大学(仙台,日本)
    • Year and Date
      2016-11-29
    • Related Report
      2016 Research-status Report
  • [Presentation] Diamagnetic MHD equations for plasmas with fast flow and its application to ELM analysis in JT-60U and JET-ILW2016

    • Author(s)
      N. Aiba, C. Giroud, M. Honda, E. Delabie, S. Saarelma, L. Frassinetti, S. Pamela, H. Urano, C. Maggi
    • Organizer
      国際原子力機関(IAEA)第26回核融合エネルギー会議
    • Place of Presentation
      京都国際会館(京都,日本)
    • Year and Date
      2016-10-17
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] 回転トカマク中におけるエッジローカライズモードの安定性に対するイオン反磁性ドリフト効果2015

    • Author(s)
      相羽信行,本多充,神谷健作
    • Organizer
      第32回プラズマ核融合学会 年会
    • Place of Presentation
      名古屋大学(愛知県名古屋市)
    • Year and Date
      2015-11-24
    • Related Report
      2015 Research-status Report
  • [Presentation] Impact of ion diamagnetic drift effect on MHD stability at edge pedestal of rotating tokamaks2015

    • Author(s)
      N. Aiba, M. Honda, K. Kamiya
    • Organizer
      H-mode workshop 2015
    • Place of Presentation
      Garching (Germany)
    • Year and Date
      2015-10-19
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research

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Published: 2015-04-16   Modified: 2022-02-16  

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