Simulation study of interactions between reconnecting magnetohydrodynamic instability and micro-turbulence

• Project/Area Number: 18760642
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Nuclear fusion studies
• Research Institution: National Institute for Fusion Science
• Principal Investigator: ISHIZAWA Akihiro National Institute for Fusion Science, シミュレーション科学研究部, 助教 (30390636)
• Project Period (FY): 2006 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥2,150,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥150,000); Fiscal Year 2008: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2007: ¥700,000 (Direct Cost: ¥700,000); Fiscal Year 2006: ¥800,000 (Direct Cost: ¥800,000)
• Keywords: プラズマ閉じ込め / 安定性 / 乱流 / 磁気流体不安定性 / 多階層相互作用 / 熱輸送 / 数値シミユレーション / 微視的乱流 / 多階層 / 数値シミュレーション

Research Abstract

巨視的磁気流体不安定性、乱流によって生ずる微視的揺動及びゾーナル流の多階層非線形相互作用のプラズマ閉じ込めへの影響を明らかにするために、新たに開発した二流体シミュレーションコードを用いて数値シミュレーションを行った。その結果、微視的乱流とそれに伴って生ずるゾーナル流を含む準平衡状態中に微視的乱流の揺動から巨視的磁気流体不安定性が発生する過程をはじめて示した。この乱流とゾーナル流を含む準平衡状態の中から安定性の成長から始まる磁気流体シミュレーションと本質的に異なる新しいシミュレーションである。

Research Products

• [Journal Article] Thermal transport due to turbulence including magnetic fluctuation in externally heated plasma (2009)
  • Author(s): A. Ishizawa and N. Nakajima
  • Journal Title: Nuclear Fusion (Vol.49) Pages: 55015-55015
  • Peer Reviewed
• [Journal Article] 流体としての磁場閉じ込め核融合プラズマ-実験を意識した電磁流体力学方程式の拡張- (2009)
  • Author(s): 中島徳嘉,内藤裕志,藤堂,石澤明宏
  • Journal Title: J. Plasma Fusion Res (Vol.85,No.3) Pages: 105-118
  • NAID: 110007230381
  • Peer Reviewed
• [Journal Article] Thermal transport due to turbulence including magnetic fluctuation in externally heated plasma (2009)
  • Author(s): A. Ishizawa and N. Nakajima
  • Journal Title: Nuclear Fusion 49(印刷中)
  • Peer Reviewed
• [Journal Article] Effect of zonal flow caused by microturbulence on the double tearing mode (2008)
  • Author(s): A. Ishizawa and N. Nakajima
  • Journal Title: Physics of Plasmas 15 Pages: 84504-84504
  • Peer Reviewed
• [Journal Article] Transport due to Electromagnetic Turbulence in Externally Heated Plasma (2008)
  • Author(s): A. Ishizawa and N. Nakajima
  • Journal Title: Proceedings of 22nd IAEA Fusion Energy Conference
  • Peer Reviewed
• [Journal Article] Multi-scale interactions among micro-turbulence, macro-MHD, and zonal flow (2008)
  • Author(s): Akihiro Ishizawa and Noriyoshi Nakajima
  • Journal Title: AIP Conf. Proc 1069 Pages: 110-110
• [Journal Article] Transport due to Electromagnetic Turbulence in Externally Heated Plasma (2008)
  • Author(s): A. Ishizawa and N. Nakajima
  • Journal Title: Proceedings of the 22^<nd> IAEA Fusion Energy Conference (CD-ROM)
  • Peer Reviewed
• [Journal Article] 流体としての磁場閉じ込め核融合プラズマ (2008)
  • Author(s): 中島徳嘉, 内藤裕志, 藤堂泰, 石澤明宏
  • Journal Title: プラズマ核融合学会誌 85 Pages: 105-118
  • Peer Reviewed
• [Journal Article] Excitation of Macro Magnetohydrodynamic Mode due to Multi-Scale Interaction in a Quasi-Steady Equilibrium Formed by a Balance between Micro-Turbulence and Zonal Flow (2007)
  • Author(s): A. Ishizawa and N. Nakajima
  • Journal Title: Physics of Plasmas 14 Pages: 40702-40702
  • Peer Reviewed
• [Journal Article] Multi-Scale-Nonlinear Interactions among Micro-Turbulence, Double-tearing instability, and Zonal Flows (2007)
  • Author(s): A. Ishizawa and N. Nakajima
  • Journal Title: Nuclear Fusion 47 Pages: 1540-1551
  • Peer Reviewed
• [Journal Article] Excitation of Macro-Magnetohydrodynamic Mode due to Multi-Scale Interaction in a Quasi-Steady Equilibrium Formed by a Balancebetween Micro-Turbulence and Zonal Flow (2007)
  • Author(s): A. Ishizawa and N. Nakajima
  • Journal Title: Physics of Plasmas 14
  • Peer Reviewed
• [Journal Article] Excitation of Macro-Magnetohydrodynamic Mode due to Multi-Scale Interaction in a Quasi-Steady Equilibrium Formed by a Balance between Micro-Turbulence and Zonal Flow (2007)
  • Author(s): A.Ishizawa, N.Nakajima
  • Journal Title: Physics of Plasmas (4月号掲載予定)
• [Journal Article] Multi-Scale-Nonlinear Interactions among Micro-Turbulence, Magnetic Islands, and Zonal Flows (2006)
  • Author(s): A.Ishizawa, N.Nakajima, M.Okamoto, J.J.Ramos
  • Journal Title: Proceedings of 21st IAEA Fusion Energy Conference
• [Journal Article] Dominant roles of pressure tensors in collisionless magnetic reconnection without a guide field (2006)
  • Author(s): A.Ishizawa, R.Horiuchi
  • Journal Title: Journal of Plasma Physics 72 Pages: 787-790
• [Presentation] 乱流に影響されたテアリングモード (2009)
  • Author(s): 石澤明宏 中島徳嘉
  • Organizer: 日本物理学会
  • Place of Presentation: 立教大学
  • Year and Date: 2009-03-28
• [Presentation] 乱流に影響されたテアリングモード (2009)
  • Author(s): 石澤明宏, 中島徳嘉
  • Organizer: 第64回日本物理学会年次大会
  • Place of Presentation: 立教大学(東京)
  • Year and Date: 2009-03-28
• [Presentation] Transport due to Electromagnetic Turbulence in Externally Heated Plasma (2008)
  • Author(s): A. Ishizawa and N. Nakajima
  • Organizer: 22^<nd> IAEA Fusion Energy conference 2008
  • Place of Presentation: ジュネーブ(スイス)
  • Year and Date: 2008-10-17
• [Presentation] Multi-scale interactions among micro-turbulence, macro-MHD, and zonal flow (2008)
  • Author(s): A. Ishizawa and N. Nakajima
  • Organizer: Joint Varenna-Lausanne International Workshop on Theory of Fusion Plasmas
  • Place of Presentation: ローザンヌ(イタリア)
  • Year and Date: 2008-08-27
• [Presentation] 微視的乱流と巨視的磁気流体不安定性の多階層相互作用 (2008)
  • Author(s): 石澤明宏、中島徳嘉
  • Organizer: 第57回理論応用力学講演会
  • Place of Presentation: Tokyo
  • Year and Date: 2008-06-28
• [Presentation] 微視的乱流と巨視的磁気流体不安定性の多階層相互作用 (2008)
  • Author(s): 石澤明宏, 中島徳嘉
  • Organizer: 第57回理論応用力学講演会
  • Place of Presentation: 東京
  • Year and Date: 2008-06-11
• [Presentation] Transport due to electromagnetic turbulence in externally heated plasma (2008)
  • Author(s): A. Ishizawa and N. Nakajima
  • Organizer: US/Japan JIFT workshop "New development of simulation science"
  • Place of Presentation: Austin, Toki
• [Presentation] Multi-scale interactions among micro-turbulence, macro-MHD, and zonal flow (2008)
  • Author(s): A. Ishizawa and N. Nakajima
  • Organizer: THEORY OF FUSION PLASMAS JOINT VARENNA-LAUSANNE INTERNATIONAL WORKSHOP
• [Presentation] Transport due to Electromagnetic Turbulence in Externally Heated Plasma (2008)
  • Author(s): A. Ishizawa and N. Nakajima
  • Organizer: 22nd IAEA Fusion Energy Conference
  • Place of Presentation: Geneva, Switzerland
• [Presentation] 磁気島と微視的乱流の相互作用 (2007)
  • Author(s): 石澤明宏、P. H. Diamond, 中島徳嘉
  • Organizer: プラズマ・核融合学会第24回年会講演会
  • Place of Presentation: 姫路
  • Year and Date: 2007-11-28
• [Presentation] A model of interaction between magnetic island and drift wave turbulence (2007)
  • Author(s): A. Ishizawa, P. H. Diamond, N. Nakajima
  • Organizer: 17th International Toki Conference
  • Place of Presentation: 岐阜県土岐市
  • Year and Date: 2007-10-17
• [Presentation] A model of interaction between magnetic island and drift wave turbulence (2007)
  • Author(s): A. Ishizawa, P. H. Diamond, N. Nakajima
  • Organizer: 17th International Toki Conference
  • Place of Presentation: Toki, Japan
  • Year and Date: 2007-10-17
• [Presentation] Multi-scale interactions among macro-MHD, micro-turbulence, and zonal flows (2007)
  • Author(s): A. Ishizawa and N. Nakajima
  • Organizer: 12th US-EU Transport Task Force Workshop
  • Place of Presentation: San Diego, USA
  • Year and Date: 2007-04-18
• [Presentation] Multi-scale interactions among macro-MHD, micro-turbulence and zonal flows (2007)
  • Author(s): A. Ishizawa and N. Nakajima
  • Organizer: 12th US-EU Transport Taskforce Workshop
  • Place of Presentation: Diego, USA
• [Presentation] 磁気島と微視的乱流の相互作用 (2007)
  • Author(s): A. Ishizawa, P. H. Diamond*, N. Nakajima
  • Organizer: プラズマ・核融合学会第24回年会講演会
  • Place of Presentation: イーグレひめじ
• [Presentation] 磁気流体不安定性、微視的乱流および帯状流の相互作用のシミュレーション (2006)
  • Author(s): A. Ishizawa, N. Nakajima, J. Ramos
  • Organizer: プラズマ・核融合学会第23回年会
  • Place of Presentation: 筑波大学大学会館
  • Year and Date: 2006-11-29
• [Presentation] Multi-Scale-Nonlinear Interactions among Micro-Turbulence, Magnetic Islands, and Zonal Flows (2006)
  • Author(s): A. Ishizawa, N. Nakajima, M. Okamoto, J. J. Ramos
  • Organizer: 21st IAEA Fusion Energy Conference
  • Place of Presentation: Chengdu, China
• [Remarks]
  • URL: http://www.dss.nifs.ac.jp/ishizawa/
• [Remarks]
  • URL: http://www.dss.nifs.ac.jp/ishizawa/