Ion diamagnetic effffects in gyrofluid collisionless magnetic reconnection (Contributo in atti di convegno)

Type
Label
  • Ion diamagnetic effffects in gyrofluid collisionless magnetic reconnection (Contributo in atti di convegno) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1088/1742-6596/401/1/012008 (literal)
Alternative label
  • D. Grasso (1); F. L. Waelbroeck (2); E. Tassi (3) (2012)
    Ion diamagnetic effffects in gyrofluid collisionless magnetic reconnection
    in 13th Joint Varenna-Lausanne International Workshop on the Theory of Fusion Plasmas, Varenna, Italy, Aug. 27-31, 2012
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • D. Grasso (1); F. L. Waelbroeck (2); E. Tassi (3) (literal)
Pagina inizio
  • art_n_12008 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://iopscience.iop.org/1742-6596/401/1/012008?fromSearchPage=true (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 401 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 1 (literal)
Note
  • ISI Web of Science (WOS) (literal)
  • Scopu (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1) CNR-ISC, Dipartimento di Energia, Politecnico di Torino, Corso Duca degli Abruzzi, 24,10129, Torino, Italy 2) Institute for Fusion Studies, The University of Texas at Austin, Austin, TX 78712-1060, USA 3) Centre de Physique Th?eorique, CNRS - Aix-Marseille Universit?es, Campus de Luminy, case 907, F-13288 Marseille cedex 09, France (literal)
Titolo
  • Ion diamagnetic effffects in gyrofluid collisionless magnetic reconnection (literal)
Abstract
  • Ion diamagnetic effects on collisionless magnetic reconnection are investigated by means of numerical simulations of a Hamiltonian gyrofluid model. The work is focused in particular on the effects of inhomogeneous density equilibria in the large Delta' regime. The linear growth rates predicted by asymptotic theory are recovered. Nonlinearly the island shape is strongly modified and the flow changes its typical four-cell structure into a simpler two cell one. Contrary to the resistive reconnection process, we find that in Hamiltonian (i.e. collisionless) reconnection the width of the final saturated island is independent from the diamagnetic effects and the magnetic island grows up to the equilibrium scale length. (literal)
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