Rapid alignment of velocity and magnetic field in magnetohydrodynamic turbulence

Autores
Matthaeus, W. H.; Pouquet, A.; Mininni, Pablo Daniel; Dmitruk, Pablo Ariel; Breech, B.
Año de publicación
2008
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We show that local directional alignment of the velocity and magnetic field fluctuations occurs rapidly in magnetohydrodynamics for a variety of parameters and is seen both in direct numerical simulations and in solar wind data. The phenomenon is due to an alignment between magnetic field and gradients of either pressure or kinetic energy, and is similar to alignment of velocity and vorticity in Navier-Stokes turbulence. This rapid and robust relaxation process leads to a local weakening of nonlinear terms. © 2008 The American Physical Society.
Fil: Matthaeus, W. H.. Bartol Research Institute; Reino Unido
Fil: Pouquet, A.. National Center for Atmospheric Research; Estados Unidos
Fil: Mininni, Pablo Daniel. National Center for Atmospheric Research; Estados Unidos. Universidad de Buenos Aires; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
Fil: Dmitruk, Pablo Ariel. Universidad de Buenos Aires; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
Fil: Breech, B.. Bartol Research Institute; Reino Unido
Materia
Magnetohydrodynamic
Turbulence
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/61557
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Rapid alignment of velocity and magnetic field in magnetohydrodynamic turbulenceMatthaeus, W. H.Pouquet, A.Mininni, Pablo DanielDmitruk, Pablo ArielBreech, B.MagnetohydrodynamicTurbulencehttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We show that local directional alignment of the velocity and magnetic field fluctuations occurs rapidly in magnetohydrodynamics for a variety of parameters and is seen both in direct numerical simulations and in solar wind data. The phenomenon is due to an alignment between magnetic field and gradients of either pressure or kinetic energy, and is similar to alignment of velocity and vorticity in Navier-Stokes turbulence. This rapid and robust relaxation process leads to a local weakening of nonlinear terms. © 2008 The American Physical Society.Fil: Matthaeus, W. H.. Bartol Research Institute; Reino UnidoFil: Pouquet, A.. National Center for Atmospheric Research; Estados UnidosFil: Mininni, Pablo Daniel. National Center for Atmospheric Research; Estados Unidos. Universidad de Buenos Aires; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; ArgentinaFil: Dmitruk, Pablo Ariel. Universidad de Buenos Aires; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; ArgentinaFil: Breech, B.. Bartol Research Institute; Reino UnidoAmerican Physical Society2008-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/61557Matthaeus, W. H.; Pouquet, A.; Mininni, Pablo Daniel; Dmitruk, Pablo Ariel; Breech, B.; Rapid alignment of velocity and magnetic field in magnetohydrodynamic turbulence; American Physical Society; Physical Review Letters; 100; 8; 12-2008; 850031-8500340031-9007CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevLett.100.085003info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:54:43Zoai:ri.conicet.gov.ar:11336/61557instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 14:54:43.295CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Rapid alignment of velocity and magnetic field in magnetohydrodynamic turbulence
title Rapid alignment of velocity and magnetic field in magnetohydrodynamic turbulence
spellingShingle Rapid alignment of velocity and magnetic field in magnetohydrodynamic turbulence
Matthaeus, W. H.
Magnetohydrodynamic
Turbulence
title_short Rapid alignment of velocity and magnetic field in magnetohydrodynamic turbulence
title_full Rapid alignment of velocity and magnetic field in magnetohydrodynamic turbulence
title_fullStr Rapid alignment of velocity and magnetic field in magnetohydrodynamic turbulence
title_full_unstemmed Rapid alignment of velocity and magnetic field in magnetohydrodynamic turbulence
title_sort Rapid alignment of velocity and magnetic field in magnetohydrodynamic turbulence
dc.creator.none.fl_str_mv Matthaeus, W. H.
Pouquet, A.
Mininni, Pablo Daniel
Dmitruk, Pablo Ariel
Breech, B.
author Matthaeus, W. H.
author_facet Matthaeus, W. H.
Pouquet, A.
Mininni, Pablo Daniel
Dmitruk, Pablo Ariel
Breech, B.
author_role author
author2 Pouquet, A.
Mininni, Pablo Daniel
Dmitruk, Pablo Ariel
Breech, B.
author2_role author
author
author
author
dc.subject.none.fl_str_mv Magnetohydrodynamic
Turbulence
topic Magnetohydrodynamic
Turbulence
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We show that local directional alignment of the velocity and magnetic field fluctuations occurs rapidly in magnetohydrodynamics for a variety of parameters and is seen both in direct numerical simulations and in solar wind data. The phenomenon is due to an alignment between magnetic field and gradients of either pressure or kinetic energy, and is similar to alignment of velocity and vorticity in Navier-Stokes turbulence. This rapid and robust relaxation process leads to a local weakening of nonlinear terms. © 2008 The American Physical Society.
Fil: Matthaeus, W. H.. Bartol Research Institute; Reino Unido
Fil: Pouquet, A.. National Center for Atmospheric Research; Estados Unidos
Fil: Mininni, Pablo Daniel. National Center for Atmospheric Research; Estados Unidos. Universidad de Buenos Aires; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
Fil: Dmitruk, Pablo Ariel. Universidad de Buenos Aires; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física de Buenos Aires. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física de Buenos Aires; Argentina
Fil: Breech, B.. Bartol Research Institute; Reino Unido
description We show that local directional alignment of the velocity and magnetic field fluctuations occurs rapidly in magnetohydrodynamics for a variety of parameters and is seen both in direct numerical simulations and in solar wind data. The phenomenon is due to an alignment between magnetic field and gradients of either pressure or kinetic energy, and is similar to alignment of velocity and vorticity in Navier-Stokes turbulence. This rapid and robust relaxation process leads to a local weakening of nonlinear terms. © 2008 The American Physical Society.
publishDate 2008
dc.date.none.fl_str_mv 2008-12
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/61557
Matthaeus, W. H.; Pouquet, A.; Mininni, Pablo Daniel; Dmitruk, Pablo Ariel; Breech, B.; Rapid alignment of velocity and magnetic field in magnetohydrodynamic turbulence; American Physical Society; Physical Review Letters; 100; 8; 12-2008; 850031-850034
0031-9007
CONICET Digital
CONICET
url http://hdl.handle.net/11336/61557
identifier_str_mv Matthaeus, W. H.; Pouquet, A.; Mininni, Pablo Daniel; Dmitruk, Pablo Ariel; Breech, B.; Rapid alignment of velocity and magnetic field in magnetohydrodynamic turbulence; American Physical Society; Physical Review Letters; 100; 8; 12-2008; 850031-850034
0031-9007
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevLett.100.085003
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Physical Society
publisher.none.fl_str_mv American Physical Society
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.22299

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