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Study on transient response of impurity ion transport induced by electron heating

Research Project

Project/Area Number 18K03591
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 14020:Nuclear fusion-related
Research InstitutionJapan Atomic Energy Agency

Principal Investigator

Idomura Yasuhiro  国立研究開発法人日本原子力研究開発機構, システム計算科学センター, 室長 (00354580)

Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2019: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2018: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
KeywordsITER / ジャイロ運動論 / エクサスケール計算 / イオン温度勾配駆動乱流 / 捕捉電子モード乱流 / 水素同位体効果 / 不純物輸送 / LOC-SOC遷移 / 磁場閉じ込め核融合 / 新古典輸送 / 核融合 / 数値実験 / 電子加熱 / プラズマ乱流 / シミュレーション
Outline of Final Research Achievements

In order to understand changes of transient plasma responses and confinement properties in various plasma heating conditions and plasma parameters, we extended the global full-f gyrokinetic code GT5D to a multi-ion species model, and enabled extreme scale numerical experiments on exascale supercomputers. We conducted numerical experiments of multi-ion species plasmas, and clarified mechanisms of impurity transport and hydrogen isotope effects in the ion temperature gradient driven (ITG) turbulence. In electron heating numerical experiments for the LOC-SOC transition in ohmic heating plasmas, we reproduced carbon impurity exhaust due to transition from the trapped electron mode (TEM) turbulence to the ITG turbulence during the LOC-SOC transition.

Academic Significance and Societal Importance of the Research Achievements

核反応生成α粒子による自己加熱が支配的となるITERや将来の原型炉では中性粒子ビーム入射(NBI)による炉心への粒子補給、運動量入力、エネルギー入力を多用した直接的な炉心制御が困難であることから、プラズマ乱流を介した間接的な炉心制御が重要な課題となっている。本研究により様々なプラズマ加熱条件やプラズマパラメータにおける多種イオン系プラズマの複雑なプラズマ乱流輸送を解析する手法が確立した。また、不純物輸送や水素同位体効果といったITERの重要課題に関する物理機構の解明が進展し、間接的な炉心制御手法の開発に向けた理論的指針が得られた。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (32 results)

All 2021 2020 2019 2018 Other

All Int'l Joint Research (1 results) Journal Article (6 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 5 results) Presentation (25 results) (of which Int'l Joint Research: 14 results,  Invited: 4 results)

  • [Int'l Joint Research] CEA(フランス)

    • Related Report
      2020 Annual Research Report
  • [Journal Article] Dynamics of enhanced neoclassical particle transport of tracer impurity ions in ion temperature gradient driven turbulence2021

    • Author(s)
      Y. Idomura, K. Obrejan, Y. Asahi, M. Honda
    • Journal Title

      Physics of Plasmas

      Volume: 28 Pages: 12501-12501

    • DOI

      10.1109/sc41405.2020.00097

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Self-organization of zonal flows and isotropic eddies in toroidal electron temperature gradient driven turbulence2020

    • Author(s)
      C. Kawai, Y. Idomura, Y. Ogawa, H. Yamada
    • Journal Title

      Physics of Plasmas

      Volume: 27 Issue: 1 Pages: 82302-82302

    • DOI

      10.1063/5.0027484

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Communication-avoiding Krylov solvers for extreme scale nuclear CFD simulations2020

    • Author(s)
      Y. Idomura, T. Ina, Y. Ali, T. Imamura
    • Journal Title

      Proceedings of SNA+MC2020

      Volume: - Pages: 218-224

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Synergy of turbulent and neoclassical transport through poloidal convective cells2019

    • Author(s)
      Yuuichi Asahi, Virginie Grandgirard, Yanick Sarazin, Peter Donnel, Xavier Garbet, Yasuhiro Idomura, Guilhem Dif-Pradalier, Guillaume Latu
    • Journal Title

      Plasma Physics and Controlled Fusion

      Volume: 61 Issue: 6 Pages: 65015-65015

    • DOI

      10.1088/1361-6587/ab0972

    • Related Report
      2020 Annual Research Report 2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Isotope and Plasma Size Scaling in Ion Temperature Gradient Driven Turbulence2019

    • Author(s)
      Y. Idomura
    • Journal Title

      Physics of Plasmas

      Volume: 26 Issue: 12 Pages: 120703-120703

    • DOI

      10.1063/1.5133084

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] 核融合プラズマのエクサスケールシミュレーション2019

    • Author(s)
      井戸村泰宏、渡邉智彦、藤堂泰
    • Journal Title

      シミュレーション

      Volume: 38 Pages: 79-86

    • Related Report
      2019 Research-status Report
  • [Presentation] 富岳およびSummitにおける核融合プラズマ流体解析の高速化2020

    • Author(s)
      井戸村泰宏 、伊奈拓哉、Y. Ali、今村俊幸
    • Organizer
      第34回数値流体力学シンポジウム
    • Related Report
      2020 Annual Research Report
  • [Presentation] Global Full-f Gyrokinetic Simulations of Isotope Scaling in Ion Temperature Gradient Driven Turbulence2020

    • Author(s)
      Y. Idomura
    • Organizer
      4th Asia-Pacific Conference on Plasma Physics
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] イオン温度勾配駆動乱流と新古典粒子輸送の相互作用機構2020

    • Author(s)
      井戸村泰宏、Kevin Obrejan、朝比祐一、本多充
    • Organizer
      日本物理学会 第76回年次大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Dynamics of enhanced neoclassical particle transport of tracer impurity ions in ion temperature gradient driven turbulence2020

    • Author(s)
      Y. Idomura
    • Organizer
      26th ITPA Transport and Confinement Topical Group Meeting
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Acceleration of Fusion Plasma Turbulence Simulations using the Mixed-Precision Communication-Avoiding Krylov Method2020

    • Author(s)
      Y. Idomura, T. Ina, Y. Ali, T. Imamura
    • Organizer
      SC20
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Optimization of Fusion Plasma Turbulence Code GT5D on FUGAKU and SUMMIT2020

    • Author(s)
      Y. Idomura, T. Ina, Y. Ali, T. Imamura
    • Organizer
      2nd R-CCS international symposium
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 核融合プラズマのジャイロ運動論シミュレーション2019

    • Author(s)
      井戸村泰宏
    • Organizer
      STEシミュレーション研究会2019
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] Computational Challenges Towards Exascale Fusion Plasma Turbulence Simulations2019

    • Author(s)
      Y. Idomura
    • Organizer
      9th East-Asia School and Workshop on Laboratory, Space, and Astrophysical Plasmas (EASW9)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Status of GT5D2019

    • Author(s)
      Y. Idomura
    • Organizer
      Joint US-Japan Workshop on PostK-ECP Collaboration and JIFT Exascale Computing Collaboration
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Influence of the normalised gyroradius on neoclassical transport in global gyrokinetic simulations using the code GT5D2019

    • Author(s)
      K. Obrejan, Y. Idomura, M. Honda
    • Organizer
      18th European Fusion Theory Conference
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] タングステン不純物の大域的新古典輸送解析2019

    • Author(s)
      井戸村泰宏、K.Obrejan、本多充
    • Organizer
      日本物理学会第75回年次大会
    • Related Report
      2019 Research-status Report
  • [Presentation] イオン温度勾配駆動乱流における水素同位体効果の解析2019

    • Author(s)
      井戸村泰宏
    • Organizer
      第36回プラズマ・核融合学会年会
    • Related Report
      2019 Research-status Report
  • [Presentation] 大域的ジャイロ運動論的シミュレーションにおける衝突輸送に対する規格化ジャイロ半径の影響2019

    • Author(s)
      K. Obrejan、井戸村泰宏、本多充
    • Organizer
      第36回プラズマ・核融合学会年会
    • Related Report
      2019 Research-status Report
  • [Presentation] Influence of the normalised ion gyroradius on collisional transport of impurities in GT5D simulations2019

    • Author(s)
      K. Obrejan、井戸村泰宏、本多充
    • Organizer
      プラズマシミュレータシンポジウム2019
    • Related Report
      2019 Research-status Report
  • [Presentation] ITG 乱流における水素同位体効果の full-f ジャイロ運動論シミュレーション2019

    • Author(s)
      井戸村泰宏
    • Organizer
      プラズマシミュレータシンポジウム2019
    • Related Report
      2019 Research-status Report
  • [Presentation] Development of Exascale Fusion Plasma Turbulence Simulations for Post-K2019

    • Author(s)
      Y. Idomura, T. Ina, K. Obrejan, Y. Asahi, S. Matsuoka, T. Imamura
    • Organizer
      1st R-CCS International Symposium
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Numerical study of the influence of higher order flows in neoclassical transport of high-Z impurities2019

    • Author(s)
      K. Obrejan, Y. Idomura, M. Honda
    • Organizer
      24th US-EU Transport Task Force Meeting
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Numerical study of neoclassical impurity transport using the code GT5D2019

    • Author(s)
      K. Obrejan, Y. Idomura, M. Honda
    • Organizer
      22nd ITPA Transport and Confinement Topical Group Meeting
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] 実験解析に向けた準局所的full-fジャイロ運動論シミュレーションの開発2019

    • Author(s)
      井戸村泰宏、K. Obrejan、朝比祐一、松岡清吉
    • Organizer
      日本物理学会第74回年次大会
    • Related Report
      2018 Research-status Report
  • [Presentation] Enhancement of neoclassical impurity transport by a geodesic compression effect in full-f gyrokinetic simulations2018

    • Author(s)
      Y. Idomura
    • Organizer
      20th ITPA Transport and Confinement Topical Group Meeting
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Computational Challenges Towards Exascale Fusion Plasma Turbulence Simulations2018

    • Author(s)
      Y. Idomura
    • Organizer
      13th World Congress in Computational Mechanics
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Status of GT5D2018

    • Author(s)
      Y. Idomura
    • Organizer
      4th US-Japan Joint Institute for Fusion Theory Workshop on innovations and co-designs of fusion simulations towards extreme scale computing
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Introduction of multi-species collision operator in GT5D and its application to heavy impurity transport2018

    • Author(s)
      K. Obrejan, Y. Idomura, M. Honda
    • Organizer
      Numerical Methods for the Kinetic Equations of Plasma Physics (Numkin2018) workshop
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] ポスト京に向けた核融合プラズマ乱流コードのエクサスケール計算技術開発2018

    • Author(s)
      井戸村泰宏
    • Organizer
      第24回NEXT(数値トカマク)研究会
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] イオン温度勾配駆動乱流における不純物輸送解析2018

    • Author(s)
      井戸村泰宏、K. Obrejan
    • Organizer
      第35回プラズマ・核融合学会
    • Related Report
      2018 Research-status Report

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Published: 2018-04-23   Modified: 2022-01-27  

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