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

Wave–particle interactions in tokamaks

K.C. Shaing, M. Garcia-Munoz, E. Viezzer, R.W. Harvey2024年6月Nuclear FusionIF 3出版社

Transport consequences of the wave–particle interactions in the quasilinear plateau (QP) regime are presented. Eulerian approach is adopted to solve the drift kinetic equation that includes the physics of the nonlinear trapping (NT) and QP regimes. The localization of the perturbed distribution simplifies the test particle collision operator. It is shown that a mirror force like term responsible for the flattening of the distribution in the NT regime is subdominant in the QP regime, and controls the transition between these two regimes. Transport fluxes, flux-power relation, and nonlinear damping or growth rate are all calculated. There is no explicit collision frequency dependence in these quantities; however, the width of the resonance does. Formulas that join the asymptotic results of these two regimes to facilitate thermal and energetic particle transport, and nonlinear wave evolution of a single mode are presented.

日本語訳

準線形プラトー(QP)領域における波動–粒子相互作用の輸送結果を示す。非線形捕捉(NT)およびQP領域の物理を含むドリフト運動方程式を解くために、オイラー的アプローチを採用する。摂動分布の局在化により、テスト粒子衝突演算子が単純化される。NT領域における分布の平坦化の原因となる鏡力のような項は、QP領域では従属的であり、これら二つの領域間の遷移を制御することを示す。輸送フラックス、フラックス–パワー関係、非線形減衰率または成長率をすべて計算する。これらの量には明示的な衝突周波数依存性はないが、共鳴の幅には依存性がある。熱的および高エネルギー粒子輸送、ならびに単一モードの非線形波動発展を容易にするために、これら二つの領域の漸近結果を結び付ける公式を示す。

AIによる論文要約

トカマクにおける波粒子相互作用
JAこの論文は、プラズマ物理、核融合の研究者や学生に有益です。トカマクにおける波粒子相互作用の理解を深め、プラズマ輸送や波動の非線形進化を理解するのに役立ちます。#トカマク #波粒子相互作用 #プラズマ物理 #核融合 #プラズマ輸送

この論文は、トカマクにおける準線形プラトー(QP)領域の波粒子相互作用による輸送への影響を解説しています。運動論方程式を解くことで、非線形トラッピング(NT)領域とQP領域の遷移を理解し、輸送フラックス、フラックス-パワー関係、非線形減衰や成長率を計算しています。これらの量には明示的な衝突周波数依存性はなく、共鳴幅に依存することを示しています。

ENThis paper would be of interest to fusion researchers studying plasma transport and wave-particle interactions in tokamaks. It provides a detailed theoretical analysis that could help improve understanding of these phenomena and their impact on fusion reactor performance.#FusionPlasmaTransport #WaveParticleInteractions #TokamakPhysics

This paper examines the effects of wave-particle interactions on transport in tokamaks, focusing on the quasilinear plateau (QP) regime. It uses an Eulerian approach to solve the drift kinetic equation, which includes the physics of nonlinear trapping (NT) and QP regimes. The paper calculates transport fluxes, flux-power relations, and nonlinear damping or growth rates, finding that the width of the resonance, rather than the collision frequency, is the key factor.

関連論文

Nonlinear trapping in wave–particle interactions in tokamaks

2021Nuclear Fusion

The role of collisions in the quasilinear theory of radio-frequency heating and current drive in nearly collisionless plasmas

2004Plasma Physics and Controlled Fusion

Quasilinear theory revisited: general kinetic formulation of wave–particle interactions in plasmas

2010Plasma Physics and Controlled Fusion

Neoclassical toroidal plasma viscosity in bounce-transit and drift resonance regimes in tokamaks

2023Nuclear Fusion

Role of wave-particle resonance in turbulent transport in toroidal plasmas

2022Plasma Physics and Controlled Fusion

Theory for neoclassical toroidal plasma viscosity in tokamaks

2012Plasma Physics and Controlled Fusion

Nonlinear trapping in the bounce-transit and drift resonance and neoclassical toroidal plasma viscosity in tokamaks

2020Nuclear Fusion

Nonlinear Alfvén instability simulation and EP transport for ITER reversed shear (steady-state) and monotonic q-profile regimes

2025Nuclear Fusion

Particle dynamics in the field of two waves in a magnetoplasma

2014Plasma Physics and Controlled Fusion

Dynamics of particle flux in a cylindrical magnetized plasma

2012Plasma Physics and Controlled Fusion