Local and global properties of energy transfer in models of plasma turbulence

Vasconez, Christian L.Escuela Politec Nacl, Dept Fis, Ladron de Guevara E11-253, Quito 170525, Ecuador. (författare)

The nature of the turbulent energy transfer rate is studied using direct numerical simulations of weakly collisional space plasmas. This is done comparing results obtained from hybrid Vlasov-Maxwell simulations of collisionless plasmas, Hall magnetohydrodynamics and Landau fluid models reproducing low-frequency kinetic effects, such as the Landau damping. In this turbulent scenario, estimates of the local and global scaling properties of different energy channels are obtained using a proxy of the local energy transfer. This approach provides information on the structure of energy fluxes, under the assumption that the turbulent cascade transfers most of the energy that is then dissipated at small scales by various kinetic processes in these kinds of plasmas.

Perrone, D.ASI Italian Space Agcy, Via Politecn Snc, I-00133 Rome, Italy. (författare)
Marino, R.Univ Claude Bernard Lyon 1, Lab Mecan Fluides & Acoust, CNRS, Ecole Cent Lyon,INSA Lyon, F-69134 Ecully, France. (författare)
Laveder, D.Univ Cote Azur, CNRS, Observ Cote Azur, Lab JL Lagrange, Blvd Observ,CS 34229, F-06304 Nice 4, France. (författare)
Valentini, F.Univ Calabria, Dipartimento Fis, I-87036 Arcavacata Di Rende, CS, Italy. (författare)
Servidio, S.Univ Calabria, Dipartimento Fis, I-87036 Arcavacata Di Rende, CS, Italy. (författare)
Mininni, P.Univ Buenos Aires, Dipartimento Fis, RA-1428 Buenos Aires, DF, Argentina.;Consejo Nacl Invest Cient & Tecn, IFIBA, RA-1428 Buenos Aires, DF, Argentina. (författare)
Sorriso-Valvo, L.Uppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen,CNR, Ist Sci & Tecnol Plasmi ISTP, Via Amendola 122-D, I-70126 Bari, Italy.(Swepub:uu)lucso160 (författare)
Escuela Politec Nacl, Dept Fis, Ladron de Guevara E11-253, Quito 170525, Ecuador.ASI Italian Space Agcy, Via Politecn Snc, I-00133 Rome, Italy. (creator_code:org_t)

Ingår i:Journal of Plasma Physics: Cambridge University Press87:10022-37781469-7807

Av författaren/redakt...: Vasconez, Christ ...; Perrone, D.; Marino, R.; Laveder, D.; Valentini, F.; Servidio, S.; visa fler...; Mininni, P.; Sorriso-Valvo, L ...; visa färre...

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