Lack of universality in mhd turbulence, and the possible emergence of a new paradigm?

Mostrar todas las versiones(3)

We review some of the recent results obtained in MHD turbulence, as encountered in many astrophysical objects.We focus attention on the lack of universality in such flows, including in the simplest case (no externally imposed magnetic field, no forcing, unit magnetic Prandtl number). Several paramet...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Pouquet, A., Brachet, M.-E., Lee, E., Mininni, P., Rosenberg, D., Uritsky, V.
Formato: SER
Materias:
(magnetohydrodynamics:) MHD
(Sun:) solar wind
ISM: magnetic fields
Magnetic fields
Stars: activity
Sun: flares
Turbulence
Waves
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_17439213_v6_nS271_p304_Pouquet
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_17439213_v6_nS271_p304_Pouquet
record_format dspace
spelling todo:paper_17439213_v6_nS271_p304_Pouquet2023-10-03T16:31:35Z Lack of universality in mhd turbulence, and the possible emergence of a new paradigm? Pouquet, A. Brachet, M.-E. Lee, E. Mininni, P. Rosenberg, D. Uritsky, V. (magnetohydrodynamics:) MHD (Sun:) solar wind ISM: magnetic fields Magnetic fields Stars: activity Sun: flares Turbulence Waves We review some of the recent results obtained in MHD turbulence, as encountered in many astrophysical objects.We focus attention on the lack of universality in such flows, including in the simplest case (no externally imposed magnetic field, no forcing, unit magnetic Prandtl number). Several parameters can foster such a breakdown of classical Kolmogorov scaling, such as the presence of velocity-magnetic field correlations, or of magnetic helicity and the role of the interplay between nonlinear eddies and Alfven waves. A link with avalanche processes is also discussed. These findings have led to the conjecture of the emergence of a new paradigm for MHD turbulence, as a possibly unsettled competition between several dynamical phenomena. © International Astronomical Union 2011. Fil:Mininni, P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. SER info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_17439213_v6_nS271_p304_Pouquet
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic (magnetohydrodynamics:) MHD
(Sun:) solar wind
ISM: magnetic fields
Magnetic fields
Stars: activity
Sun: flares
Turbulence
Waves
spellingShingle (magnetohydrodynamics:) MHD
(Sun:) solar wind
ISM: magnetic fields
Magnetic fields
Stars: activity
Sun: flares
Turbulence
Waves
Pouquet, A.
Brachet, M.-E.
Lee, E.
Mininni, P.
Rosenberg, D.
Uritsky, V.
Lack of universality in mhd turbulence, and the possible emergence of a new paradigm?
topic_facet (magnetohydrodynamics:) MHD
(Sun:) solar wind
ISM: magnetic fields
Magnetic fields
Stars: activity
Sun: flares
Turbulence
Waves
description We review some of the recent results obtained in MHD turbulence, as encountered in many astrophysical objects.We focus attention on the lack of universality in such flows, including in the simplest case (no externally imposed magnetic field, no forcing, unit magnetic Prandtl number). Several parameters can foster such a breakdown of classical Kolmogorov scaling, such as the presence of velocity-magnetic field correlations, or of magnetic helicity and the role of the interplay between nonlinear eddies and Alfven waves. A link with avalanche processes is also discussed. These findings have led to the conjecture of the emergence of a new paradigm for MHD turbulence, as a possibly unsettled competition between several dynamical phenomena. © International Astronomical Union 2011.
format SER
author Pouquet, A.
Brachet, M.-E.
Lee, E.
Mininni, P.
Rosenberg, D.
Uritsky, V.
author_facet Pouquet, A.
Brachet, M.-E.
Lee, E.
Mininni, P.
Rosenberg, D.
Uritsky, V.
author_sort Pouquet, A.
title Lack of universality in mhd turbulence, and the possible emergence of a new paradigm?
title_short Lack of universality in mhd turbulence, and the possible emergence of a new paradigm?
title_full Lack of universality in mhd turbulence, and the possible emergence of a new paradigm?
title_fullStr Lack of universality in mhd turbulence, and the possible emergence of a new paradigm?
title_full_unstemmed Lack of universality in mhd turbulence, and the possible emergence of a new paradigm?
title_sort lack of universality in mhd turbulence, and the possible emergence of a new paradigm?
url http://hdl.handle.net/20.500.12110/paper_17439213_v6_nS271_p304_Pouquet
work_keys_str_mv AT pouqueta lackofuniversalityinmhdturbulenceandthepossibleemergenceofanewparadigm
AT brachetme lackofuniversalityinmhdturbulenceandthepossibleemergenceofanewparadigm
AT leee lackofuniversalityinmhdturbulenceandthepossibleemergenceofanewparadigm
AT mininnip lackofuniversalityinmhdturbulenceandthepossibleemergenceofanewparadigm
AT rosenbergd lackofuniversalityinmhdturbulenceandthepossibleemergenceofanewparadigm
AT uritskyv lackofuniversalityinmhdturbulenceandthepossibleemergenceofanewparadigm
_version_ 1807323905173487616

Ejemplares similares