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Title: Comparison of multiscale analysis models applied to zonal flow generation in ion-temperature-gradient mode turbulence

Abstract

During the past years the understanding of the multiscale interaction problems have increased significantly. However, at present there exists a range of different analytical models for investigating multiscale interactions and hardly any specific comparisons have been performed among these models. In this work, two different models for the generation of zonal flows from ion-temperature-gradient (ITG) background turbulence are discussed and compared. The methods used is the coherent mode coupling model and the wave kinetic equation model (WKE). It is shown that the two models qualitatively give the same results even though the assumption on the spectral difference is used in the WKE approach.

Authors:
;  [1]
  1. Department of Fundamental Energy Science, Graduate School of Energy Science, Kyoto University, Gokasho, Uji, Kyoto 611-0011 (Japan)
Publication Date:
OSTI Identifier:
20960096
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 14; Journal Issue: 1; Other Information: DOI: 10.1063/1.2432050; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; COMPARATIVE EVALUATIONS; ION TEMPERATURE; KINETIC EQUATIONS; PLASMA; TEMPERATURE GRADIENTS; TURBULENCE

Citation Formats

Anderson, J., and Kishimoto, Y. Comparison of multiscale analysis models applied to zonal flow generation in ion-temperature-gradient mode turbulence. United States: N. p., 2007. Web. doi:10.1063/1.2432050.
Anderson, J., & Kishimoto, Y. Comparison of multiscale analysis models applied to zonal flow generation in ion-temperature-gradient mode turbulence. United States. doi:10.1063/1.2432050.
Anderson, J., and Kishimoto, Y. Mon . "Comparison of multiscale analysis models applied to zonal flow generation in ion-temperature-gradient mode turbulence". United States. doi:10.1063/1.2432050.
@article{osti_20960096,
title = {Comparison of multiscale analysis models applied to zonal flow generation in ion-temperature-gradient mode turbulence},
author = {Anderson, J. and Kishimoto, Y.},
abstractNote = {During the past years the understanding of the multiscale interaction problems have increased significantly. However, at present there exists a range of different analytical models for investigating multiscale interactions and hardly any specific comparisons have been performed among these models. In this work, two different models for the generation of zonal flows from ion-temperature-gradient (ITG) background turbulence are discussed and compared. The methods used is the coherent mode coupling model and the wave kinetic equation model (WKE). It is shown that the two models qualitatively give the same results even though the assumption on the spectral difference is used in the WKE approach.},
doi = {10.1063/1.2432050},
journal = {Physics of Plasmas},
number = 1,
volume = 14,
place = {United States},
year = {Mon Jan 15 00:00:00 EST 2007},
month = {Mon Jan 15 00:00:00 EST 2007}
}