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Comparison between fluid electron-temperature-gradient driven simulations and Tore Supra experiments on electron heat transport.

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Title: Comparison between fluid electron-temperature-gradient driven simulations and Tore Supra experiments on electron heat transport.
Authors: B. LABIT1, M. OTTAVIANI2
Source: Journal of Plasma Physics. Apr2007, Vol. 73 Issue 2, p199-206. 8p.
Subjects: Temperature inversions, Thermal conductivity, Electrons, Tokamaks, Fusion reactors, Turbulence
Abstract: In recent years, much attention has been devoted to the electron-temperature-gradient (ETG) driven instability as a possible explanation for the high electron thermal conductivity found in most tokamaks. The present contribution assesses whether a specific three-dimensional fluid ETG model can reproduce the conductivity observed in the Tore Supra tokamak [Equipe Tore Supra (presented by R. Aymar) 1989 Plasma Physics and Controlled Nuclear Fusion Research (Proc. 12th Int. Conf., Nice, 1988, Vol. 1.) Vienna: IAEA, p. 9]. Although the model reproduces fairly well the observed critical gradient, a large discrepancy factor, of the order of 50, is found for the ratio between the experimental and the simulated conductivity. On the basis of this study, one must conclude that the electron heat transport cannot be explained only with a fluid ETG turbulence model. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Plasma Physics is the property of Cambridge University Press and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
An: 24398152
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  Data: Comparison between fluid electron-temperature-gradient driven simulations and Tore Supra experiments on electron heat transport.
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  Data: <searchLink fieldCode="AR" term="%22B%2E+LABIT%22">B. LABIT</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22M%2E+OTTAVIANI%22">M. OTTAVIANI</searchLink><relatesTo>2</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Plasma+Physics%22">Journal of Plasma Physics</searchLink>. Apr2007, Vol. 73 Issue 2, p199-206. 8p.
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  Data: <searchLink fieldCode="DE" term="%22Temperature+inversions%22">Temperature inversions</searchLink><br /><searchLink fieldCode="DE" term="%22Thermal+conductivity%22">Thermal conductivity</searchLink><br /><searchLink fieldCode="DE" term="%22Electrons%22">Electrons</searchLink><br /><searchLink fieldCode="DE" term="%22Tokamaks%22">Tokamaks</searchLink><br /><searchLink fieldCode="DE" term="%22Fusion+reactors%22">Fusion reactors</searchLink><br /><searchLink fieldCode="DE" term="%22Turbulence%22">Turbulence</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: In recent years, much attention has been devoted to the electron-temperature-gradient (ETG) driven instability as a possible explanation for the high electron thermal conductivity found in most tokamaks. The present contribution assesses whether a specific three-dimensional fluid ETG model can reproduce the conductivity observed in the Tore Supra tokamak [Equipe Tore Supra (presented by R. Aymar) 1989 Plasma Physics and Controlled Nuclear Fusion Research (Proc. 12th Int. Conf., Nice, 1988, Vol. 1.) Vienna: IAEA, p. 9]. Although the model reproduces fairly well the observed critical gradient, a large discrepancy factor, of the order of 50, is found for the ratio between the experimental and the simulated conductivity. On the basis of this study, one must conclude that the electron heat transport cannot be explained only with a fluid ETG turbulence model. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Plasma Physics is the property of Cambridge University Press and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1017/S0022377806004466
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      – Code: eng
        Text: English
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        PageCount: 8
        StartPage: 199
    Subjects:
      – SubjectFull: Temperature inversions
        Type: general
      – SubjectFull: Thermal conductivity
        Type: general
      – SubjectFull: Electrons
        Type: general
      – SubjectFull: Tokamaks
        Type: general
      – SubjectFull: Fusion reactors
        Type: general
      – SubjectFull: Turbulence
        Type: general
    Titles:
      – TitleFull: Comparison between fluid electron-temperature-gradient driven simulations and Tore Supra experiments on electron heat transport.
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            NameFull: B. LABIT
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              Text: Apr2007
              Type: published
              Y: 2007
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              Value: 73
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