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The growth mechanism for spherical carbon particles of micron sizes observed in a vertically excited CH4/Ar columnar plasma [F. Shoji, Z. Feng, A. Kono, and T. Nagai, Appl. Phys. Lett. 89, 171504 (200...

Interaction between turbulence and a nonlinear tearing mode in the low beta regime

Phys. Plasmas 15, 050701 (2008); doi:10.1063/1.2917915

Published 22 May 2008

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F. Militello, F. L. Waelbroeck, R. Fitzpatrick, and W. Horton
Institute for Fusion Studies, The University of Texas at Austin, Austin, Texas 78712, USA
The interaction between turbulence and a nonlinear tearing mode is investigated numerically using a 2D electrostatic model. Turbulence is found to cause transitions between the different roots for the propagation velocity of the mode. The transitions take the mode towards roots with slower propagation that are characterized by a locally flattened density profile. For sufficiently large islands the transition reduces the drive for the tearing mode. ©2008 American Institute of Physics
History: Received 16 January 2008; accepted 7 April 2008; published 22 May 2008
Permalink: http://link.aip.org/link/?PHPAEN/15/050701/1
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KEYWORDS and PACS

Keywords
PACS
  • 52.35.Ra
    Plasma turbulence
  • 52.35.Py
    Plasma macroinstabilities (hydromagnetic)
  • YEAR: 2008

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1070-664X (print)   1089-7674 (online)
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