Symmetry breaking and self-consistent rotation of magnetic islands in neoclassical viscous regimes (Articolo in rivista)

Type
Label
  • Symmetry breaking and self-consistent rotation of magnetic islands in neoclassical viscous regimes (Articolo in rivista) (literal)
Anno
  • 2009-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1063/1.3216546 (literal)
Alternative label
  • Lazzaro E. (2009)
    Symmetry breaking and self-consistent rotation of magnetic islands in neoclassical viscous regimes
    in Physics of plasmas
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Lazzaro E. (literal)
Pagina inizio
  • 092504 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://pop.aip.org/resource/1/phpaen/v16/i9/p092504_s1 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 16 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • IFP-CNR Milano, Italy (literal)
Titolo
  • Symmetry breaking and self-consistent rotation of magnetic islands in neoclassical viscous regimes (literal)
Abstract
  • Classical or neoclassical tearing modes (NTMs) perturb the ideal axisymmetry of tokamaks. As a consequence of symmetry breaking a neoclassical toroidal viscosity (NTV) appears, that depends on the island amplitude. This work shows that in the low collisionality regimes NTV has a key role in determining self-consistently the magnetic island velocity and at the same time modifies significantly the ion polarization current effects on NTM instability. This finding can provide a better understanding of the mechanism of onset of NTMs, observed experimentally, and improve the concepts for their control or avoidance. (C) 2009 American Institute of Physics. [doi:10.1063/1.3216546] (literal)
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