Effect of electromagnetic boundary conditions on the onset of small-scale dynamos driven by convection

Autores
Fontana, Mauro; Mininni, Pablo Daniel; Dmitruk, Pablo Ariel
Año de publicación
2023
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We present a high-order numerical study of the dependence of the dynamo onset on electromagnetic boundary conditions in convecting Boussinesq flows forced by temperature gradients. Perfectly conducting boundaries, vacuum, and mixed boundary conditions are considered, treating fields and boundary conditions with close to spectral accuracy. Having one or two conducting boundaries greatly facilitates dynamo action. For the mixed case it is shown that the critical magnetic Reynolds number becomes independent of the Rayleigh number Ra for sufficiently large Ra.
Fil: Fontana, Mauro. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física del Plasma. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física del Plasma; Argentina
Fil: Mininni, Pablo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física del Plasma. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física del Plasma; Argentina
Fil: Dmitruk, Pablo Ariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física del Plasma. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física del Plasma; Argentina
Materia
Dynamo theory
Direct numerical simulations
Spectral methods
Non-linear dynamics
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:11336/228416
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/228416
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Effect of electromagnetic boundary conditions on the onset of small-scale dynamos driven by convectionFontana, MauroMininni, Pablo DanielDmitruk, Pablo ArielDynamo theoryDirect numerical simulationsSpectral methodsNon-linear dynamicshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We present a high-order numerical study of the dependence of the dynamo onset on electromagnetic boundary conditions in convecting Boussinesq flows forced by temperature gradients. Perfectly conducting boundaries, vacuum, and mixed boundary conditions are considered, treating fields and boundary conditions with close to spectral accuracy. Having one or two conducting boundaries greatly facilitates dynamo action. For the mixed case it is shown that the critical magnetic Reynolds number becomes independent of the Rayleigh number Ra for sufficiently large Ra.Fil: Fontana, Mauro. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física del Plasma. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física del Plasma; ArgentinaFil: Mininni, Pablo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física del Plasma. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física del Plasma; ArgentinaFil: Dmitruk, Pablo Ariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física del Plasma. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física del Plasma; ArgentinaAmerican Physical Society2023-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/228416Fontana, Mauro; Mininni, Pablo Daniel; Dmitruk, Pablo Ariel; Effect of electromagnetic boundary conditions on the onset of small-scale dynamos driven by convection; American Physical Society; Physical Review Fluids; 8; 3; 3-2023; 1-112469-990XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://link.aps.org/doi/10.1103/PhysRevFluids.8.L031801info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevFluids.8.L031801info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:25:54Zoai:ri.conicet.gov.ar:11336/228416instacron: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:34982025-09-29 10:25:54.7CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Effect of electromagnetic boundary conditions on the onset of small-scale dynamos driven by convection
title Effect of electromagnetic boundary conditions on the onset of small-scale dynamos driven by convection
spellingShingle Effect of electromagnetic boundary conditions on the onset of small-scale dynamos driven by convection
Fontana, Mauro
Dynamo theory
Direct numerical simulations
Spectral methods
Non-linear dynamics
title_short Effect of electromagnetic boundary conditions on the onset of small-scale dynamos driven by convection
title_full Effect of electromagnetic boundary conditions on the onset of small-scale dynamos driven by convection
title_fullStr Effect of electromagnetic boundary conditions on the onset of small-scale dynamos driven by convection
title_full_unstemmed Effect of electromagnetic boundary conditions on the onset of small-scale dynamos driven by convection
title_sort Effect of electromagnetic boundary conditions on the onset of small-scale dynamos driven by convection
dc.creator.none.fl_str_mv Fontana, Mauro
Mininni, Pablo Daniel
Dmitruk, Pablo Ariel
author Fontana, Mauro
author_facet Fontana, Mauro
Mininni, Pablo Daniel
Dmitruk, Pablo Ariel
author_role author
author2 Mininni, Pablo Daniel
Dmitruk, Pablo Ariel
author2_role author
author
dc.subject.none.fl_str_mv Dynamo theory
Direct numerical simulations
Spectral methods
Non-linear dynamics
topic Dynamo theory
Direct numerical simulations
Spectral methods
Non-linear dynamics
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 present a high-order numerical study of the dependence of the dynamo onset on electromagnetic boundary conditions in convecting Boussinesq flows forced by temperature gradients. Perfectly conducting boundaries, vacuum, and mixed boundary conditions are considered, treating fields and boundary conditions with close to spectral accuracy. Having one or two conducting boundaries greatly facilitates dynamo action. For the mixed case it is shown that the critical magnetic Reynolds number becomes independent of the Rayleigh number Ra for sufficiently large Ra.
Fil: Fontana, Mauro. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física del Plasma. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física del Plasma; Argentina
Fil: Mininni, Pablo Daniel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física del Plasma. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física del Plasma; Argentina
Fil: Dmitruk, Pablo Ariel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Física del Plasma. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Física del Plasma; Argentina
description We present a high-order numerical study of the dependence of the dynamo onset on electromagnetic boundary conditions in convecting Boussinesq flows forced by temperature gradients. Perfectly conducting boundaries, vacuum, and mixed boundary conditions are considered, treating fields and boundary conditions with close to spectral accuracy. Having one or two conducting boundaries greatly facilitates dynamo action. For the mixed case it is shown that the critical magnetic Reynolds number becomes independent of the Rayleigh number Ra for sufficiently large Ra.
publishDate 2023
dc.date.none.fl_str_mv 2023-03
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/11336/228416
Fontana, Mauro; Mininni, Pablo Daniel; Dmitruk, Pablo Ariel; Effect of electromagnetic boundary conditions on the onset of small-scale dynamos driven by convection; American Physical Society; Physical Review Fluids; 8; 3; 3-2023; 1-11
2469-990X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/228416
identifier_str_mv Fontana, Mauro; Mininni, Pablo Daniel; Dmitruk, Pablo Ariel; Effect of electromagnetic boundary conditions on the onset of small-scale dynamos driven by convection; American Physical Society; Physical Review Fluids; 8; 3; 3-2023; 1-11
2469-990X
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://link.aps.org/doi/10.1103/PhysRevFluids.8.L031801
info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevFluids.8.L031801
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
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 13.070432

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