Statistical properties of transport in plasma turbulence

V. Naulin; O.E. Garcia; A.H. Nielsen; J. Juul Rasmussen

doi:10.1016/j.physleta.2003.12.019

Statistical properties of transport in plasma turbulence

V. Naulin, O.E. Garcia, A.H. Nielsen, J. Juul Rasmussen

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Abstract

The statistical properties of the particle flux in different types of plasma turbulence models are numerically investigated using probability distribution functions (PDFs). The physics included in the models range from two-dimensional drift wave turbulence to three-dimensional MHD dynamics. The PDFs of the flux-surface averaged transport are generally in good agreement with extreme value distributions (EVDs). This is interpreted as a signature of strong vortical structures dominating the transport on individual flux-surfaces. Although the transport PDFs are strongly non-Gaussian, no algebraic tails in the distributions are observed. The tails are, in all cases considered, in excellent agreement with EVDs having exponential tails. (C) 2003 Elsevier B.V. All rights reserved.

Original language	English
Journal	Physics Letters A
Volume	321
Issue number	5-6
Pages (from-to)	355-365
ISSN	0375-9601
DOIs	https://doi.org/10.1016/j.physleta.2003.12.019
Publication status	Published - 2004

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title = "Statistical properties of transport in plasma turbulence",

abstract = "The statistical properties of the particle flux in different types of plasma turbulence models are numerically investigated using probability distribution functions (PDFs). The physics included in the models range from two-dimensional drift wave turbulence to three-dimensional MHD dynamics. The PDFs of the flux-surface averaged transport are generally in good agreement with extreme value distributions (EVDs). This is interpreted as a signature of strong vortical structures dominating the transport on individual flux-surfaces. Although the transport PDFs are strongly non-Gaussian, no algebraic tails in the distributions are observed. The tails are, in all cases considered, in excellent agreement with EVDs having exponential tails. (C) 2003 Elsevier B.V. All rights reserved.",

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T1 - Statistical properties of transport in plasma turbulence

AU - Naulin, V.

AU - Garcia, O.E.

AU - Nielsen, A.H.

AU - Juul Rasmussen, J.

PY - 2004

Y1 - 2004

N2 - The statistical properties of the particle flux in different types of plasma turbulence models are numerically investigated using probability distribution functions (PDFs). The physics included in the models range from two-dimensional drift wave turbulence to three-dimensional MHD dynamics. The PDFs of the flux-surface averaged transport are generally in good agreement with extreme value distributions (EVDs). This is interpreted as a signature of strong vortical structures dominating the transport on individual flux-surfaces. Although the transport PDFs are strongly non-Gaussian, no algebraic tails in the distributions are observed. The tails are, in all cases considered, in excellent agreement with EVDs having exponential tails. (C) 2003 Elsevier B.V. All rights reserved.

AB - The statistical properties of the particle flux in different types of plasma turbulence models are numerically investigated using probability distribution functions (PDFs). The physics included in the models range from two-dimensional drift wave turbulence to three-dimensional MHD dynamics. The PDFs of the flux-surface averaged transport are generally in good agreement with extreme value distributions (EVDs). This is interpreted as a signature of strong vortical structures dominating the transport on individual flux-surfaces. Although the transport PDFs are strongly non-Gaussian, no algebraic tails in the distributions are observed. The tails are, in all cases considered, in excellent agreement with EVDs having exponential tails. (C) 2003 Elsevier B.V. All rights reserved.

KW - 2-E tekno

U2 - 10.1016/j.physleta.2003.12.019

DO - 10.1016/j.physleta.2003.12.019

M3 - Journal article

SN - 0375-9601

VL - 321

SP - 355

EP - 365

JO - Physics Letters A

JF - Physics Letters A

IS - 5-6

ER -

Statistical properties of transport in plasma turbulence

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