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

Orbit-modulated plasma transport and sources

T. Stoltzfus-Dueck2020年被引用 4Nuclear FusionIF 3出版社

Using a general conservative gyrokinetic framework in axisymmetric magnetic geometry, the steady-state orbit-loss boundary fluxes are demonstrated to be predominantly determined by upstream transport (turbulent and collisional) and upstream sources and sinks. Within the framework, the details of the equilibrium orbits, even accounting for large but axisymmetric and time-independent electric fields and poloidal pressure gradients, are demonstrated to contribute only by modulating the upstream transport and source terms. This is true not only for gyrocenter fluxes, but also for any other moments that are expressible in terms of the adiabatic invariants that determine the orbits, such as parallel toroidal angular momentum. An explicit reformulation of the orbit-loss terms facilitates their evaluation via numerical diagnostics or reduced models. Additional contributions for realistic cases, including those of fast ions and time-evolving equilibria, are briefly discussed.

日本語訳

一般的なジャイロ運動論的枠組みを軸対称磁気幾何学において用いることにより、定常状態の軌道損失境界フラックスは、主に上流側の輸送(乱流的および衝突的)と上流側の源および消滅によって決定されることが示される。この枠組み内では、平衡軌道の詳細は、たとえ大きな軸対称かつ時間非依存の電場やポロイダル圧力勾配を考慮しても、上流側の輸送項および源項を変調することによってのみ寄与することが示される。これはジャイロ中心フラックスだけでなく、軌道を決定する断熱不変量を用いて表現可能な他の任意のモーメント(例えば平行トロイダル角運動量)についても成り立つ。軌道損失項の明示的な再定式化により、数値診断または簡約モデルを用いた評価が容易になる。高速イオンや時間発展する平衡を含む現実的な場合の追加的な寄与についても簡潔に議論される。

この論文にはまだAI要約がありません。

関連論文

Orbit-modulated transport and sources in time-dependent plasmas

2021Plasma Physics and Controlled Fusion

Effects of collisional ion orbit loss on tokamak radial electric field and toroidal rotation in an L-mode plasma

2023Nuclear Fusion

Angular momentum and rotational energy of mean flows in toroidal magnetic fields

2020Nuclear Fusion

Intrinsic rotation in axisymmetric devices

2019Plasma Physics and Controlled Fusion

The topology of tokamak orbits

1979Nuclear Fusion

Hybrid guiding-centre/full-orbit simulations in non-axisymmetric magnetic geometry exploiting general criterion for guiding-centre accuracy

2015Plasma Physics and Controlled Fusion

Axisymmetric two-fluid plasma equilibria with momentum sources and sinks

2011Plasma Physics and Controlled Fusion

A toroidal momentum transport equation for axisymmetric 1D transport codes

2015Plasma Physics and Controlled Fusion

Kinetic theory of radial angular momentum flux of collisional plasmas in an axisymmetric magnetic field

2007Physics of Plasmas

Effect of a large-gradient radial electric field on plasma current in a spherical torus

2003Nuclear Fusion