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

Extended self-similarity of intermittent turbulence in edge magnetized plasmas

V.P. Budaev, N. Ohno, S. Masuzaki, T. Morisaki, A. Komori, S. Takamura2008年被引用 28Nuclear FusionIF 3出版社

We investigate the intermittency of the edge plasma turbulence in the T-10 tokamak, the Large Helical Device, the linear machine NAGDIS-II and the HYBTOK-II tokamak. The higher order structure functions are analysed to characterize the self-similarity of the plasma intermittency. The generalized scale invariance over three decades of time scales is observed by involving the extended self-similarity hypothesis. Turbulent fluctuations demonstrate multifractal statistics. The structure function scalings deviate strongly from Kolmogorov's K41 model prediction. The high-order structure functions have a nonlinear scaling being a nonlinear function of the order index. The nonlinear scaling is interpreted within the framework of the log-Poisson model considering 'hidden' statistical symmetry (dilatation group), hierarchy of moments, a generalized scale covariance and an underlying multifractal multiplicative cascading process.

日本語訳

我々は、T-10トカマク、大型ヘリカル装置、直線装置NAGDIS-II、およびHYBTOK-IIトカマクにおける周辺プラズマ乱流の間欠性を調査する。高次構造関数を解析し、プラズマ間欠性の自己相似性を特徴付ける。拡張自己相似性仮説を適用することにより、3桁の時間スケールにわたる一般化スケール不変性が観測される。乱流揺動はマルチフラクタル統計を示す。構造関数のスケーリングは、コルモゴロフのK41モデルの予測から大きく逸脱する。高次構造関数は、次数指数の非線形関数である非線形スケーリングを示す。この非線形スケーリングは、「隠れた」統計的対称性(膨張群)、モーメントの階層性、一般化スケール共変性、および基礎となるマルチフラクタル乗法的カスケード過程を考慮した対数ポアソンモデルの枠組み内で解釈される。

装置

lhd中精度(概要文一致)

wiki

Magnetized plasma
この論文にはまだAI要約がありません。

関連論文

Superdiffusion and multifractal statistics of edge plasma turbulence in fusion devices

2006Nuclear Fusion

Intermittency and extended self-similarity in space and fusion plasma: boundary effects

2008Plasma Physics and Controlled Fusion

Zero-dimensional modeling of drift wave turbulence by using Bayesian regression

2025Plasma Physics and Controlled Fusion

Characterization of edge turbulence in relation to edge magnetic field configuration in Ohmic L-mode plasmas in the Mega Amp Spherical Tokamak

2008Nuclear Fusion

Physics-based integrated modeling of the energy confinement time scaling laws for the H- and L-modes in the KSTAR-type tokamak model

2017Nuclear Fusion

Interval estimation of global H-mode energy confinement in ITER

1999Plasma Physics and Controlled Fusion

A unified physical scaling law for tokamak energy confinement

1990Nuclear Fusion

Nonlinear energy transfer between multi-scale fluctuations in HL-2A tokamak edge plasmas

2026Nuclear Fusion

Theory-based scaling of the SOL width in circular limited tokamak plasmas

2013Nuclear Fusion

Tokamak edge turbulence: background theory and computation

2007Plasma Physics and Controlled Fusion