coupling between turbulent transport and magnetic topology

2019 Fiscal Year Final Research Report

• Project/Area Number: 15H02336
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Nuclear fusion studies
• Research Institution: National Institute for Fusion Science
• Principal Investigator: Ida Katsumi 核融合科学研究所, ヘリカル研究部, 教授 (00184599)
• Co-Investigator(Kenkyū-buntansha): 吉沼 幹朗 核融合科学研究所, ヘリカル研究部, 助教 (20323058) ; 小林 達哉 核融合科学研究所, ヘリカル研究部, 助教 (30733703) ; 徳沢 季彦 核融合科学研究所, ヘリカル研究部, 准教授 (90311208)
• Project Period (FY): 2015-04-01 – 2020-03-31
• Keywords: プラズマ乱流 / 磁気流体力学不安定性 / 磁場トポロジー / 乱流輸送

Outline of Final Research Achievements

In the past, research on topology changes due to MHD instability and radial transport of heat, particles, momentum, and electric current due to electrostatic fluctuation have been treated as independent research themes. Therefore, little research has been done on the combination of the two.
In the large helical device (LHD) plasma, we have studied the coupling between magnetic field topology and turbulent transport. Through this research, the coupling between "Magneto Hydro Dynamics (MHD) instability" and "anomalous transport due to plasma turbulence" was clarified.

Free Research Field

プラズマ物理

Academic Significance and Societal Importance of the Research Achievements

磁場閉じ込めプラズマの「磁気流体力学不安定」と「プラズマ乱流による異常輸送」の二大研究分野を結ぶ、新しいプラズマ物理の研究分野を創造した点において、学術的意義が高い研究成果である。この研究成果は、磁場閉じ込めプラズマの理解に貢献し、将来の核融合の実現を加速するという点において社会的意義が大きい。