Turbulent electromagnetic fields at sub-proton scales: Two-fluid and full-kinetic plasma simulations

Autores
González, C. A.; Parashar, T.; Gomez, Daniel Osvaldo; Matthaeus, W. H.; Dmitruk, Pablo Ariel
Año de publicación
2019
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Plasma dynamics is a multi-scale problem that involves many spatial and temporal scales. Turbulence connects the disparate scales in this system through a cascade that is established by nonlinear interactions. Most astrophysical plasma systems are weakly collisional, making a fully kinetic Vlasov description of the system essential. The use of reduced models to study such systems is computationally desirable, but careful benchmarking of physics in different models is needed. We perform one such comparison here between the fully kinetic Particle-In-Cell model and a two-fluid model that includes Hall physics and electron inertia, with a particular focus on the sub-proton scale electric field. We show that in general, the two fluid model captures large scale dynamics reasonably well. At smaller scales, the Hall physics is also captured reasonably well by the fluid code, but electron features show departures from the fully kinetic model. Implications for the use of such fluid models are discussed.
Fil: González, C. A.. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina
Fil: Parashar, T.. University of Delaware; Estados Unidos
Fil: Gomez, Daniel Osvaldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio(i); Argentina
Fil: Matthaeus, W. H.. University of Delaware; Estados Unidos
Fil: Dmitruk, Pablo Ariel. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Materia
PARTICLES
ELECTRIC FIELD
TURBULENCE
MAGNETOHYDRODYNAMICS
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:11336/147818
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Turbulent electromagnetic fields at sub-proton scales: Two-fluid and full-kinetic plasma simulationsGonzález, C. A.Parashar, T.Gomez, Daniel OsvaldoMatthaeus, W. H.Dmitruk, Pablo ArielPARTICLESELECTRIC FIELDTURBULENCEMAGNETOHYDRODYNAMICShttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Plasma dynamics is a multi-scale problem that involves many spatial and temporal scales. Turbulence connects the disparate scales in this system through a cascade that is established by nonlinear interactions. Most astrophysical plasma systems are weakly collisional, making a fully kinetic Vlasov description of the system essential. The use of reduced models to study such systems is computationally desirable, but careful benchmarking of physics in different models is needed. We perform one such comparison here between the fully kinetic Particle-In-Cell model and a two-fluid model that includes Hall physics and electron inertia, with a particular focus on the sub-proton scale electric field. We show that in general, the two fluid model captures large scale dynamics reasonably well. At smaller scales, the Hall physics is also captured reasonably well by the fluid code, but electron features show departures from the fully kinetic model. Implications for the use of such fluid models are discussed.Fil: González, C. A.. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; ArgentinaFil: Parashar, T.. University of Delaware; Estados UnidosFil: Gomez, Daniel Osvaldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio(i); ArgentinaFil: Matthaeus, W. H.. University of Delaware; Estados UnidosFil: Dmitruk, Pablo Ariel. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaAmerican Institute of Physics2019-01-14info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/147818González, C. A.; Parashar, T.; Gomez, Daniel Osvaldo; Matthaeus, W. H.; Dmitruk, Pablo Ariel; Turbulent electromagnetic fields at sub-proton scales: Two-fluid and full-kinetic plasma simulations; American Institute of Physics; Physics Of Plasmas; 26; 1; 14-1-2019; 1-101070-664X1089-7674CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1063/1.5054110info:eu-repo/semantics/altIdentifier/url/https://aip.scitation.org/doi/10.1063/1.5054110info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:50:28Zoai:ri.conicet.gov.ar:11336/147818instacron: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:34982025-09-03 09:50:28.256CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Turbulent electromagnetic fields at sub-proton scales: Two-fluid and full-kinetic plasma simulations
title Turbulent electromagnetic fields at sub-proton scales: Two-fluid and full-kinetic plasma simulations
spellingShingle Turbulent electromagnetic fields at sub-proton scales: Two-fluid and full-kinetic plasma simulations
González, C. A.
PARTICLES
ELECTRIC FIELD
TURBULENCE
MAGNETOHYDRODYNAMICS
title_short Turbulent electromagnetic fields at sub-proton scales: Two-fluid and full-kinetic plasma simulations
title_full Turbulent electromagnetic fields at sub-proton scales: Two-fluid and full-kinetic plasma simulations
title_fullStr Turbulent electromagnetic fields at sub-proton scales: Two-fluid and full-kinetic plasma simulations
title_full_unstemmed Turbulent electromagnetic fields at sub-proton scales: Two-fluid and full-kinetic plasma simulations
title_sort Turbulent electromagnetic fields at sub-proton scales: Two-fluid and full-kinetic plasma simulations
dc.creator.none.fl_str_mv González, C. A.
Parashar, T.
Gomez, Daniel Osvaldo
Matthaeus, W. H.
Dmitruk, Pablo Ariel
author González, C. A.
author_facet González, C. A.
Parashar, T.
Gomez, Daniel Osvaldo
Matthaeus, W. H.
Dmitruk, Pablo Ariel
author_role author
author2 Parashar, T.
Gomez, Daniel Osvaldo
Matthaeus, W. H.
Dmitruk, Pablo Ariel
author2_role author
author
author
author
dc.subject.none.fl_str_mv PARTICLES
ELECTRIC FIELD
TURBULENCE
MAGNETOHYDRODYNAMICS
topic PARTICLES
ELECTRIC FIELD
TURBULENCE
MAGNETOHYDRODYNAMICS
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Plasma dynamics is a multi-scale problem that involves many spatial and temporal scales. Turbulence connects the disparate scales in this system through a cascade that is established by nonlinear interactions. Most astrophysical plasma systems are weakly collisional, making a fully kinetic Vlasov description of the system essential. The use of reduced models to study such systems is computationally desirable, but careful benchmarking of physics in different models is needed. We perform one such comparison here between the fully kinetic Particle-In-Cell model and a two-fluid model that includes Hall physics and electron inertia, with a particular focus on the sub-proton scale electric field. We show that in general, the two fluid model captures large scale dynamics reasonably well. At smaller scales, the Hall physics is also captured reasonably well by the fluid code, but electron features show departures from the fully kinetic model. Implications for the use of such fluid models are discussed.
Fil: González, C. A.. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina
Fil: Parashar, T.. University of Delaware; Estados Unidos
Fil: Gomez, Daniel Osvaldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio(i); Argentina
Fil: Matthaeus, W. H.. University of Delaware; Estados Unidos
Fil: Dmitruk, Pablo Ariel. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Física; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description Plasma dynamics is a multi-scale problem that involves many spatial and temporal scales. Turbulence connects the disparate scales in this system through a cascade that is established by nonlinear interactions. Most astrophysical plasma systems are weakly collisional, making a fully kinetic Vlasov description of the system essential. The use of reduced models to study such systems is computationally desirable, but careful benchmarking of physics in different models is needed. We perform one such comparison here between the fully kinetic Particle-In-Cell model and a two-fluid model that includes Hall physics and electron inertia, with a particular focus on the sub-proton scale electric field. We show that in general, the two fluid model captures large scale dynamics reasonably well. At smaller scales, the Hall physics is also captured reasonably well by the fluid code, but electron features show departures from the fully kinetic model. Implications for the use of such fluid models are discussed.
publishDate 2019
dc.date.none.fl_str_mv 2019-01-14
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/11336/147818
González, C. A.; Parashar, T.; Gomez, Daniel Osvaldo; Matthaeus, W. H.; Dmitruk, Pablo Ariel; Turbulent electromagnetic fields at sub-proton scales: Two-fluid and full-kinetic plasma simulations; American Institute of Physics; Physics Of Plasmas; 26; 1; 14-1-2019; 1-10
1070-664X
1089-7674
CONICET Digital
CONICET
url http://hdl.handle.net/11336/147818
identifier_str_mv González, C. A.; Parashar, T.; Gomez, Daniel Osvaldo; Matthaeus, W. H.; Dmitruk, Pablo Ariel; Turbulent electromagnetic fields at sub-proton scales: Two-fluid and full-kinetic plasma simulations; American Institute of Physics; Physics Of Plasmas; 26; 1; 14-1-2019; 1-10
1070-664X
1089-7674
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1063/1.5054110
info:eu-repo/semantics/altIdentifier/url/https://aip.scitation.org/doi/10.1063/1.5054110
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
dc.publisher.none.fl_str_mv American Institute of Physics
publisher.none.fl_str_mv American Institute of Physics
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
_version_ 1842269031041597440
score 13.13397

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