Study of profile and structure formation in high temperature plasmas based on electromagnetic microturbulence simulations

2008 Fiscal Year Final Research Report

• Project/Area Number: 18760646
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Nuclear fusion studies
• Research Institution: Japan Atomic Energy Agency
• Principal Investigator: MIYATO Naoaki Japan Atomic Energy Agency, 核融合研究開発部門, 研究職 (80370477)
• Project Period (FY): 2006 – 2008
• Keywords: 帯状流 / GAM / 帯状磁場 / イオン温度勾配駆動乱流 / 内部輸送障壁 / リー変換

Research Abstract

磁場閉じ込め高温プラズマ中の微視的イオン系乱流シミュレーションを行い、イオンの温度勾配により駆動される乱流とその乱流から2次的に生成される帯状の電磁場成分との間の非線形相互作用に関する研究を行った。帯状電場による帯状のプラズマ流には乱流を抑える働きがあるが、トーラスプラズマに流れる電流の大きさによる帯状流の性質変化をイオンの乱流熱輸送の制御に用いることができる可能性を示した。

Research Products

• [Journal Article] A guiding-centre 1-form towards a kinetic model for edge turbulence simulations (2009)
  • Author(s): N. Miyato, B. D. Scott, D. Strintzi, S. Tokuda
  • Journal Title: Reports of Research Institute for Applied Mechanics, Kyushu Unversiy S-4 Pages: 19-20
• [Journal Article] Dynamics of turbulent transportdominated by the geodesic acoustic mode near the critical gradient regime (2008)
  • Author(s): K. Miki, Y. Kishimoto, J. Q. Li, N. Miyato
  • Journal Title: Phys. Plasmas 15 Pages: 052309
  • Peer Reviewed
• [Journal Article] Turbulence suppression in the neighbourhood f a minimum-q surace due to zonal flow modification in reversed shear tokamaks (2007)
  • Author(s): N. Miyato, Y. Kishimoto, J. Q. Li
  • Journal Title: Nucl. Fusion 47 Pages: 929-935
  • Peer Reviewed
• [Journal Article] Intermittent transport associaed with the geodesic acoustic mode near the critical gradient regime (2007)
  • Author(s): K. Miki, Y. Kishimoto, N. Miyato, J. Q. Li
  • Journal Title: Phs. Rev. Lett. 99 Pages: 145003
  • Peer Reviewed
• [Journal Article] Nonlocal behaviour of zonal flows in tokamak plasmas (2006)
  • Author(s): N. Miyato, Y. Kishimoto, J. Q. Li
  • Journal Title: Plasma Phys. Control. Fusion 48 Pages: A35-A340
  • Peer Reviewed
• [Journal Article] Zonal flow and GAM dynamics and associated transport characteristics in reversed shear tokamaks (2006)
  • Author(s): N. Miyato, Y. Kishimoto, J. Q. Li
  • Journal Title: J. Plasma Phys. 72 Pages: 821-824
  • Peer Reviewed
• [Presentation] 強いE×B流を含む案内中心基本1-形式 (2009)
  • Author(s): 宮戸直亮, B. D. Scott, D. Strintzi, 徳田伸二
  • Organizer: 日本物理学会第64回年次大会
  • Place of Presentation: 東京
  • Year and Date: 2009-03-27
• [Presentation] Zonal mode generation by electromagnetic turbulence in tokamaks (2007)
  • Author(s): N. Miyato, Y. Kishimoto, J. Q. Li, S. Tokuda
  • Organizer: 11^<th> IAEA Technical Meng on H-mode Physics and Transport Barriers
  • Place of Presentation: Tsukuba
  • Year and Date: 2007-09-28
• [Presentation] トカマクプラズマ中の電磁的微視的乱流による帯状モードの生成 (2007)
  • Author(s): 宮戸直亮
  • Organizer: 日本物理学会第62回年次大会
  • Place of Presentation: 札幌
  • Year and Date: 2007-09-22
• [Presentation] トカマクプラズマにおけるイオン温度勾配駆動乱流と帯状流・GAMとの相互作用についてのシミュレーション研究 (2007)
  • Author(s): 宮戸直亮
  • Organizer: 日本物理学会第62回年次大会 若手奨励賞受賞記念講演
  • Place of Presentation: 札幌
  • Year and Date: 2007-09-21
• [Presentation] Finite beta effects on ITG turbulence-zonal mode system in tokamak plasmas (2007)
  • Author(s): N. Miyato, Y. Kishimoto, J. Q. Li, S. Tokuda
  • Organizer: 34^<th> EPS Conferece on Plasma Physics
  • Place of Presentation: Warsaw
  • Year and Date: 2007-07-05
• [Presentation] Interplay between zonal flows/GAMs and ITG turbulence in tokamak plasms (2006)
  • Author(s): N. Miyato, Y. Kishimoto, J. Q. Li
  • Organizer: 21^<st> IAEA Fusion Energy Conference
  • Place of Presentation: Chengdu
  • Year and Date: 2006-10-18
• [Presentation] 加熱駆動のITG乱流シミュレーションによるトカマクプラズマ中の乱流輸送の研究 (2006)
  • Author(s): 宮戸直亮, 岸本泰明, 李 継全
  • Organizer: 第6回核融合エネルギー連合講演会
  • Place of Presentation: 富山
  • Year and Date: 2006-06-13
• [Remarks] ホームページ等
  • URL: http://www-jt60.naka.jaea.go.jp/theory/staff/miyatoJ.html