Nonlinear electromagnetic gyrokinetic equations for rotating axisymmetric plasmas

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The influence of sheared equilibrium flows on the confinement properties of tokamak plasmas is a topic of much current interest. A proper theoretical foundation for the systematic kinetic analysis of this important problem has been provided here by presented the derivation of a set of nonlinear electromagnetic gyrokinetic equations applicable to low frequency microinstabilities in a rotating axisymmetric plasma. The subsonic rotation velocity considered is in the direction of symmetry with the angular rotation frequency being a function of the equilibrium magnetic flux surface. In accordance with experimental observations, the rotation profile is chosen to scale with the ion temperature. ... continued below

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36 p.

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Artun, M. & Tang, W.M. March 1, 1994.

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This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 12 times . More information about this report can be viewed below.

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Description

The influence of sheared equilibrium flows on the confinement properties of tokamak plasmas is a topic of much current interest. A proper theoretical foundation for the systematic kinetic analysis of this important problem has been provided here by presented the derivation of a set of nonlinear electromagnetic gyrokinetic equations applicable to low frequency microinstabilities in a rotating axisymmetric plasma. The subsonic rotation velocity considered is in the direction of symmetry with the angular rotation frequency being a function of the equilibrium magnetic flux surface. In accordance with experimental observations, the rotation profile is chosen to scale with the ion temperature. The results obtained represent the shear flow generalization of the earlier analysis by Frieman and Chen where such flows were not taken into account. In order to make it readily applicable to gyrokinetic particle simulations, this set of equations is cast in a phase-space-conserving continuity equation form.

Physical Description

36 p.

Notes

INIS; OSTI as DE94008837

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  • Other Information: PBD: Mar 1994

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  • Other: DE94008837
  • Report No.: PPPL--2976
  • Grant Number: AC02-76CH03073
  • DOI: 10.2172/142543 | External Link
  • Office of Scientific & Technical Information Report Number: 142543
  • Archival Resource Key: ark:/67531/metadc625277

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Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • March 1, 1994

Added to The UNT Digital Library

  • June 16, 2015, 7:43 a.m.

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  • April 15, 2016, 6:48 p.m.

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Artun, M. & Tang, W.M. Nonlinear electromagnetic gyrokinetic equations for rotating axisymmetric plasmas, report, March 1, 1994; Princeton, New Jersey. (digital.library.unt.edu/ark:/67531/metadc625277/: accessed November 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.