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

Modelling of pellet injection experiments with Onsager-symmetric transport relations

J. O'Rourke1987年被引用 13Nuclear FusionIF 3出版社

The formalism of non-equilibrium thermodynamics is applied to the problem of radial transport in tokamak plasmas. Phenomenological relations between generalized forces and fluxes, consistent with the empirical Alcator scaling, are suggested. — A simple 1-D transport model incorporating these relations is shown to reproduce the salient features of recent pellet injection experiments on Alcator-C: a drop in the central temperature preceeding pellet penetration, rapid (< 1 ms) peaking of the density profile, a marked rise in the energy confinement time immediately following injection and persistence of the state of high confinement and peaked density for a time longer than the initial confinement time. The same model reproduces a saturation of Alcator scaling when the density profile becomes flat, as is observed in high density, edge fuelled Alcator-C discharges.

日本語訳

非平衡熱力学の形式をトカマクプラズマにおける径方向輸送の問題に適用する。経験的なアルカター則と整合する、一般化された力と流束の間の現象論的関係が提案される。これらの関係を組み込んだ単純な1次元輸送モデルが、アルカターCにおける最近のペレット入射実験の顕著な特徴を再現することが示される:ペレット侵入前の中心温度の低下、密度分布の急速な(1ミリ秒未満の)ピーキング、入射直後のエネルギー閉じ込め時間の顕著な増加、および初期の閉じ込め時間よりも長い期間にわたる高閉じ込め状態とピーキングした密度分布の持続。同じモデルは、密度分布が平坦になる際のアルカター則の飽和も再現するが、これは高密度・周辺部入射のアルカターC放電で観測される現象である。

wiki

Pellet injection
この論文にはまだAI要約がありません。

関連論文

Effect of pellet fuelling on energy transport in ohmically heated alcator C plasmas

1986Nuclear Fusion

Confinement and turbulence study in the Frascati Tokamak Upgrade high field and high density plasmas

2006Nuclear Fusion

Observation of m=1, n=1 oscillations following the injection of a fuel pellet into the Alcator C tokamak

1987Nuclear Fusion

Pellet injection into PDX diverted plasmas

1982Nuclear Fusion

Pellet injection with improved confinement in ASDEX

1988Nuclear Fusion

Impurity injection experiments on the Alcator C tokamak

1982Nuclear Fusion

Measurement of the current density profile in the Alcator C tokamak using lithium pellets

1989Review of Scientific Instruments

Density profile control in a fusion reactor using pellet injection

1994Nuclear Fusion

Tokamak transport code simulations with drift wave models

1987Nuclear Fusion

Transport through dissipative trapped electron mode and toroidal ion temperature gradient mode in TEXTOR

1988Nuclear Fusion