Particle model for nonlocal heat transport in fusion plasmas (Articolo in rivista)

Type
Label
  • Particle model for nonlocal heat transport in fusion plasmas (Articolo in rivista) (literal)
Anno
  • 2013-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1103/PhysRevE.87.023102 (literal)
Alternative label
  • H. Bufferand (1); G. Ciraolo (2); Ph. Ghendrih (3); S. Lepri (4); R. Livi (5) (2013)
    Particle model for nonlocal heat transport in fusion plasmas
    in Physical review. E, Statistical, nonlinear, and soft matter physics (Print)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • H. Bufferand (1); G. Ciraolo (2); Ph. Ghendrih (3); S. Lepri (4); R. Livi (5) (literal)
Pagina inizio
  • 023102 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
  • http://link.aps.org/doi/10.1103/PhysRevE.87.023102 (literal)
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  • 87 (literal)
Rivista
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  • 9 (literal)
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  • 2 (literal)
Note
  • Scopu (literal)
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  • (1) Aix-Marseille Université, Laboratoire M2P2-CNRS UMR 7340, 38, rue Frédéric Joliot-Curie, 13451 Marseille, France (2) Ecole Centrale Marseille, Laboratoire M2P2-CNRS UMR 7340, 38, rue Frédéric Joliot-Curie, 13451 Marseille, France (3) CEA-IRFM, F-13108 Saint-Paul-lez-Durance, France (4) Consiglio Nazionale delle Ricerche, Istituto dei Sistemi Complessi via Madonna del piano 10, I-50019 Sesto Fiorentino, Italy (5) Dipartimento di Fisica e Centro Interdipartimentale per lo Studio delle Dinamiche Complesse, Università di Firenze, via G. Sansone 1, I-50019 Sesto Fiorentino, Italy (literal)
Titolo
  • Particle model for nonlocal heat transport in fusion plasmas (literal)
Abstract
  • We present a simple stochastic, one-dimensional model for heat transfer in weakly collisional media as fusion plasmas. Energies of plasma particles are treated as lattice random variables interacting with a rate inversely proportional to their energy schematizing a screened Coulomb interaction. We consider both the equilibrium (microcanonical) and nonequilibrium case in which the system is in contact with heat baths at different temperatures. The model exhibits a characteristic length of thermalization that can be associated with an interaction mean free path and one observes a transition from ballistic to diffusive regime depending on the average energy of the system. A mean-field expression for heat flux is deduced from system heat transport properties. Finally, it is shown that the nonequilibrium steady state is characterized by long-range correlations. (literal)
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