We review the current literature on the formation of coherent structures (CoSs) in strongly turbulent 3D magnetized plasmas. CoSs [Current Sheets (CS), magnetic filaments, large amplitude magnetic disturbances, vortices, and shocklets] appear intermittently inside a turbulent plasma and are collectively the locus of magnetic energy transfer (dissipation) into particle kinetic energy, leading to heating and/or acceleration of the latter. CoSs and especially CSs are also evolving and fragmenting, becoming locally the source of new clusters of CoSs. Strong turbulence can be generated by the nonlinear coupling of large amplitude unstable plasma modes, by the explosive reorganization of large-scale magnetic fields, or by the fragmentation of CoSs. A small fraction of CSs inside a strongly turbulent plasma will end up reconnecting. Magnetic Reconnection (MR) is one of the potential forms of energy dissipation of a turbulent plasma. Analyzing the evolution of CSs and MR in isolation from the surrounding CoSs and plasma flows may be convenient for 2D numerical studies, but it is far from a realistic modeling of 3D astrophysical, space, and laboratory environments, where strong turbulence can be exited, such as in the solar wind, the solar atmosphere, solar flares and Coronal Mass Ejections, large-scale space and astrophysical shocks, the magnetosheath, the magnetotail, astrophysical jets, and Edge Localized Modes in confined laboratory plasmas (tokamaks).
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April 2023
Review Article|
April 21 2023
Formation and evolution of coherent structures in 3D strongly turbulent magnetized plasmas
Special Collection:
Reviews and Tutorials in Nonlinear Phenomena, Turbulence, and Transport
Loukas Vlahos
;
Loukas Vlahos
a)
(Writing – original draft, Writing – review & editing)
Department of Physics, Aristotle University
, 54124 Thessaloniki, Greece
a)Author to whom correspondence should be addressed: vlahos@astro.auth.gr
Search for other works by this author on:
Heinz Isliker
Heinz Isliker
b)
(Writing – original draft, Writing – review & editing)
Department of Physics, Aristotle University
, 54124 Thessaloniki, Greece
Search for other works by this author on:
a)Author to whom correspondence should be addressed: vlahos@astro.auth.gr
b)
Electronic mail: isliker@astro.auth.gr
Phys. Plasmas 30, 040502 (2023)
Article history
Received:
January 06 2023
Accepted:
March 24 2023
Citation
Loukas Vlahos, Heinz Isliker; Formation and evolution of coherent structures in 3D strongly turbulent magnetized plasmas. Phys. Plasmas 1 April 2023; 30 (4): 040502. https://doi.org/10.1063/5.0141512
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