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

Generalised zonal modes in stationary axisymmetric plasmas

J P Graves, C Wahlberg2017年Plasma Physics and Controlled FusionIF 2.2出版社

The MHD model enables derivation and analysis of the rich structure of geodesic acoustic modes (GAMs) and zonal modes in axisymmetric magnetic confined plasmas. The modes are identifiable from a single dispersion relation as two branches of slow magnetosonic continua. The lower frequency branch can be identified as a zonal flow (ZF), which in the simplified limit of static plasmas, has vanishing magnetic component. It is shown in this contribution that axisymmetric, and lesser known non-axisymmetric, zonal modes can be derived from MHD and kinetic models. The work provides a comprehensive derivation of the GAMs and ZF continua in stationary toroidally rotating plasmas, and investigates the exact solution and structure of a generalised family of zonal modes in static equilibria.

日本語訳

MHDモデルは、軸対称磁気閉じ込めプラズマにおける測地線音響モード(GAM)および帯状モードの豊かな構造の導出と解析を可能にする。これらのモードは、単一の分散関係から、遅い磁気音波連続体の2つの分枝として同定可能である。低周波分枝は帯状流(ZF)として同定でき、簡略化された静的プラズマの極限では、磁気成分が消滅する。本稿では、軸対称およびあまり知られていない非軸対称の帯状モードが、MHDモデルと運動論モデルの両方から導出可能であることを示す。この研究は、定常トロイダル回転プラズマにおけるGAMおよびZF連続体の包括的な導出を提供し、静的平衡における一般化された帯状モード族の厳密解と構造を調査する。

wiki

Zonal flow
この論文にはまだAI要約がありません。

関連論文

Effects of plasma current on nonlinear interactions of ITG turbulence, zonal flows and geodesic acoustic modes

2006Plasma Physics and Controlled Fusion

Zonal flows induced by symmetry breaking with existence of geodesic acoustic modes

2012Nuclear Fusion

Consistent dynamics of geodesic acoustic modes and zonal flows in toroidally rotating tokamak plasmas

2026Nuclear Fusion

Low-frequency zonal flow eigen-structures in tokamak plasmas

2022Nuclear Fusion

Experimental progress on zonal flow physics in toroidal plasmas

2007Nuclear Fusion

Low-frequency magnetohydrodynamics and geodesic acoustic modes in toroidally rotating tokamak plasmas

2009Plasma Physics and Controlled Fusion

Study of a drift wave-zonal mode system based on global electromagnetic Landau-fluid ITG simulation in toroidal plasmas

2005Nuclear Fusion

Nonlinear equilibria, stability and generation of zonal structures in toroidal plasmas

2007Nuclear Fusion

Effects of plasma nonuniformity on zero frequency zonal structure generation by drift Alfvén wave instabilities in toroidal plasmas

2025Nuclear Fusion

Rotation effect on geodesic and zonal flow modes in tokamak plasmas with isothermal magnetic surfaces

2011Plasma Physics and Controlled Fusion