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

Part of: Focus on Plasma Astrophysics The Many Facets of the Vlasov Equation

Published online by Cambridge University Press:  26 January 2021

Christian L. Vásconez Open the ORCID record for Christian L. Vásconez [Opens in a new window] ,
D. Perrone ,
R. Marino ,
D. Laveder ,
F. Valentini Open the ORCID record for F. Valentini [Opens in a new window] ,
S. Servidio ,
P. Mininni  and
L. Sorriso-Valvo Open the ORCID record for L. Sorriso-Valvo [Opens in a new window]
Christian L. Vásconez*
Affiliation:
Departamento de Física, Escuela Politécnica Nacional, Ladrón de Guevara E11-253, 170525Quito, Ecuador
D. Perrone
Affiliation:
ASI – Italian Space Agency, Via del Politecnico snc, 00133Rome, Italy
R. Marino
Affiliation:
Laboratoire de Mécanique des Fluides et d'Acoustique, CNRS, École Centrale de Lyon, Université Claude Bernard Lyon 1, INSA de Lyon, ÉcullyF-69134, France
D. Laveder
Affiliation:
Université Côte d'Azur, CNRS, Observatoire de la Côte d'Azur, Laboratoire J. L. Lagrange, Boulevard de l'Observatoire, CS 34229, 06304Nice CEDEX 4, France
F. Valentini
Affiliation:
Dipartimento di Fisica, Università della Calabria, I-87036Rende (CS), Italy
S. Servidio
Affiliation:
Dipartimento di Fisica, Università della Calabria, I-87036Rende (CS), Italy
P. Mininni
Affiliation:
Departamento de Física, Universidad de Buenos Aires and IFIBA, CONICET, 1428Buenos Aires, Argentina
L. Sorriso-Valvo
Affiliation:
Istituto per la Scienza e Tecnologia dei Plasmi (ISTP), Consiglio Nazionale delle Ricerche, Via Amendola 122/D, 70126Bari, Italy Swedish Institute of Space Physics, Ångström Laboratory, Lägerhyddsvägen 1, SE-751 21Uppsala, Sweden
*
†Email address for correspondence: [email protected]
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Abstract

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.

Keywords

space plasma physicsplasma nonlinear phenomenaplasma simulation
Type
Research Article
Information
Journal of Plasma Physics , Volume 87 , Issue 1 , February 2021 , 825870101
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Copyright
Copyright © The Author(s), 2021. Published by Cambridge University Press

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References

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