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

Global modelling of tungsten impurity transport based on the drift-kinetic equation

Ryutaro Kanno, Gakushi Kawamura, Masanori Nunami, Yuki Homma, Akiyoshi Hatayama, Kazuo Hoshino2020年被引用 5Nuclear FusionIF 3出版社

A global kinetic simulation model of collisional impurity transport is developed for evaluating the radial particle flux of tungsten impurity in the edge region of a tokamak plasma. Here, the plasma including the impurity and the background ion is presupposed to be quasi-steady. The simulation model is based on the drift-kinetic equation of the impurity affected by the friction force and the thermal force, which were formulated in the previous study (Homma et al 2016 Nucl. Fusion56 036009). The model is implemented in a drift-kinetic simulation code. We find that the magnetic drift term in the drift-kinetic equation causes the 'global effect' on the impurity transport. Here, the global effect means that the solution of the drift-kinetic equation (and also the radial particle flux) on a magnetic flux surface is influenced by the values of the solution all over the edge region.

日本語訳

トカマクプラズマの周辺領域におけるタングステン不純物の径方向粒子束を評価するために、衝突性不純物輸送の大域的運動論シミュレーションモデルを開発した。ここでは、不純物と背景イオンを含むプラズマは準定常であると仮定されている。シミュレーションモデルは、先行研究(Homma et al 2016 Nucl. Fusion 56 036009)で定式化された摩擦力と熱力の影響を受ける不純物のドリフト運動論方程式に基づいている。このモデルはドリフト運動論シミュレーションコードに実装されている。ドリフト運動論方程式における磁気ドリフト項が不純物輸送に「大域的効果」を引き起こすことが見出された。ここで、大域的効果とは、磁気面上のドリフト運動論方程式の解(および径方向粒子束)が、周辺領域全体にわたる解の値によって影響を受けることを意味する。

wiki

TungstenImpurityImpurity transport
この論文にはまだAI要約がありません。

関連論文

Simulation study of the effect of magnetic curvature drift on tungsten impurity transport in the edge plasma region of EAST Tokamak

2026Plasma Physics and Controlled Fusion

Improved kinetic test particle model for impurity transport in tokamaks

1998Nuclear Fusion

Ion transport from collisions and finite guiding centre drift excursions

2004Plasma Physics and Controlled Fusion

Study on impurity hole plasmas by global neoclassical simulation

2021Nuclear Fusion

Particle and parallel momentum balance equations with inclusion of drifts, for modelling strong- to weakly-collisional edge plasmas

2006Nuclear Fusion

Solution of the drift‐kinetic equation for global plasma modes and finite particle orbit widths

1994Physics of Plasmas

Improved kinetic neoclassical transport calculation for a low-collisionality QH-mode pedestal

2016Plasma Physics and Controlled Fusion

Turbulent transport of the W ions in tokamak plasmas: properties derived from a test particle approach

2021Nuclear Fusion

On the drift kinetic equation driven by plasma flows

2010Plasma Physics and Controlled Fusion

On the validity of drift-reduced fluid models for tokamak plasma simulation

2015Plasma Physics and Controlled Fusion