FusionPapers
図版検索トレンドwiki日本の研究
© 2026 FUSIONPAPERS
About法務情報
トップに戻る

Effect of resonant magnetic perturbation on edge–core turbulence spreading in a tokamak plasma

Guangzhi Ren, Lai Wei, Jiquan Li, Zheng-Xiong Wang2024年5月Nuclear FusionIF 3出版社

Turbulence spreading from the edge to the core region of a tokamak with a resonant magnetic perturbation (RMP) is investigated using an electromagnetic Landau-fluid model in a toroidal geometry. As a RMP field with an appropriate amplitude is applied, long-wavelength fluctuations around the resonance surface can be excited due to forced magnetic reconnection. Strong shear flow at the magnetic island separatrix is observed, which can break the radially elongated vortex structures of the turbulent fluctuation. Inward turbulence spreading can be blocked by this shear flow, and the saturation level of turbulence intensity in the core region declines.

日本語訳

共鳴磁気摂動(RMP)を有するトカマクの周辺から中心領域への乱流拡がりを、トロイダル幾何学における電磁ランダウ流体モデルを用いて調べた。適切な振幅を持つRMP場が印加されると、強制磁気リコネクションにより、共鳴面周辺の長波長揺動が励起され得る。磁気アイランドのセパラトリクスにおいて強いせん断流が観測され、これが乱流揺動の径方向に伸長した渦構造を破壊し得る。内向きの乱流拡がりはこのせん断流によって遮断され得、中心領域における乱流強度の飽和レベルは低下する。

wiki

Magnetic perturbationResonant magnetic perturbation

AIによる論文要約

トカマク プラズマにおける共鳴磁気摂動が端部-コア乱流伝播に及ぼす効果
JAトカマク核融合プラズマの閉じ込め特性の理解と制御に興味のある研究者や学生#トカマク #共鳴磁気摂動 #乱流伝播 #プラズマ閉じ込め

共鳴磁気摂動(RMP)が印加されたトカマクプラズマにおいて、端部から中心部への乱流の伝播が抑制されることを示す。RMPにより共鳴面付近の長波長揺動が励起され、磁気島境界で強いシアー流が発生する。このシアー流が乱流構造を破壊し、中心部への乱流伝播を阻害する。

Effect of resonant magnetic perturbation on edge–core turbulence spreading in a tokamak plasma
ENThis paper would be of interest to fusion researchers studying plasma confinement and control in tokamak devices. It provides insights into how external magnetic perturbations can be used to manage turbulence and improve plasma performance.#FusionPlasma #TokamakTurbulence #PlasmaConfinement #MagneticPerturbation

This paper investigates how a resonant magnetic perturbation (RMP) affects the spread of turbulence from the edge to the core of a tokamak plasma. It shows that RMP can create strong shear flow at the magnetic island separatrix, which can block the inward spread of turbulence and reduce the turbulence intensity in the core region.

関連論文

Influence of n = 1 resonant magnetic perturbation on flow and turbulence towards L-H transition

2025Nuclear Fusion

Impact of three-dimensional magnetic perturbations on turbulence in tokamak edge plasmas

2021Plasma Physics and Controlled Fusion

Experimental study of the electromagnetic component of drift-wave turbulence

2008Plasma Physics and Controlled Fusion

Overview of the recent research on the J-TEXT tokamak

2015Nuclear Fusion

Plasma turbulence simulations in a diverted tokamak with applied resonant magnetic perturbations

2023Nuclear Fusion

Co-current toroidal rotation-driven and turbulent stresses with resonant magnetic perturbations in the edge plasmas of the J-TEXT tokamak

2016Nuclear Fusion

Response of a magnetically diverted tokamak plasma to a resonant magnetic perturbation

2026Nuclear Fusion

Shear-induced Reynolds stress at the edge of L-mode tokamak plasmas

2012Nuclear Fusion

Turbulence spreading as a non-local mechanism of global confinement degradation and ion temperature profile stiffness

2015Nuclear Fusion

Gyrofluid computation of magnetic perturbation effects on turbulence and edge localized bursts

2017Nuclear Fusion