Understanding turbulence through numerical simulations
- Autores
- Gomez, Daniel Osvaldo; Mininni, Pablo Daniel
- Año de publicación
- 2004
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Turbulence is one of the important problems in classical physics that still remain unsolved. The Navier–Stokes equations have been studied for almost two centuries now, and although they seem to properly describe the dynamics of 6uids, we still do not have a clear understanding of eventhe simplest turbulent 6ows. We present numerical simulations of three dimensional, homogeneous and isotropic turbulence at moderate Reynolds numbers. We externally drive the 6uid with either helical or non-helical forces. In both cases we ;nd that the externally driven system relaxes to a stationary turbulent regime, which is compatible with the Kolmogorov spectrum Ek ≈ k−5=3 . Inthe helical case, we con;rm that the kinetic helicity also cascades directly, along with energy and displaying a Kolmogorov spectrum as well. We ;nd that the dissipation scale of both ideal invariants is also consistent with the Kolmogorov scale (i.e., k ≈ ( = 3 )1=4).
Fil: Gomez, Daniel Osvaldo. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina
Fil: Mininni, Pablo Daniel. 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 - Materia
- Turbulence
- Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/22433
Ver los metadatos del registro completo
id |
CONICETDig_8586c36fa515410191c1cb31dfa3dbb0 |
---|---|
oai_identifier_str |
oai:ri.conicet.gov.ar:11336/22433 |
network_acronym_str |
CONICETDig |
repository_id_str |
3498 |
network_name_str |
CONICET Digital (CONICET) |
spelling |
Understanding turbulence through numerical simulationsGomez, Daniel OsvaldoMininni, Pablo DanielTurbulencehttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Turbulence is one of the important problems in classical physics that still remain unsolved. The Navier–Stokes equations have been studied for almost two centuries now, and although they seem to properly describe the dynamics of 6uids, we still do not have a clear understanding of eventhe simplest turbulent 6ows. We present numerical simulations of three dimensional, homogeneous and isotropic turbulence at moderate Reynolds numbers. We externally drive the 6uid with either helical or non-helical forces. In both cases we ;nd that the externally driven system relaxes to a stationary turbulent regime, which is compatible with the Kolmogorov spectrum Ek ≈ k−5=3 . Inthe helical case, we con;rm that the kinetic helicity also cascades directly, along with energy and displaying a Kolmogorov spectrum as well. We ;nd that the dissipation scale of both ideal invariants is also consistent with the Kolmogorov scale (i.e., k ≈ ( = 3 )1=4).Fil: Gomez, Daniel Osvaldo. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; ArgentinaFil: Mininni, Pablo Daniel. 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; ArgentinaElsevier Science2004-12info: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/11336/22433Gomez, Daniel Osvaldo; Mininni, Pablo Daniel; Understanding turbulence through numerical simulations; Elsevier Science; Physica A: Statistical Mechanics and its Applications; 342; 1-2; 12-2004; 69-750378-4371CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.physa.2004.04.061info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0378437104004753info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:08:28Zoai:ri.conicet.gov.ar:11336/22433instacron: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 10:08:28.339CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Understanding turbulence through numerical simulations |
title |
Understanding turbulence through numerical simulations |
spellingShingle |
Understanding turbulence through numerical simulations Gomez, Daniel Osvaldo Turbulence |
title_short |
Understanding turbulence through numerical simulations |
title_full |
Understanding turbulence through numerical simulations |
title_fullStr |
Understanding turbulence through numerical simulations |
title_full_unstemmed |
Understanding turbulence through numerical simulations |
title_sort |
Understanding turbulence through numerical simulations |
dc.creator.none.fl_str_mv |
Gomez, Daniel Osvaldo Mininni, Pablo Daniel |
author |
Gomez, Daniel Osvaldo |
author_facet |
Gomez, Daniel Osvaldo Mininni, Pablo Daniel |
author_role |
author |
author2 |
Mininni, Pablo Daniel |
author2_role |
author |
dc.subject.none.fl_str_mv |
Turbulence |
topic |
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 |
Turbulence is one of the important problems in classical physics that still remain unsolved. The Navier–Stokes equations have been studied for almost two centuries now, and although they seem to properly describe the dynamics of 6uids, we still do not have a clear understanding of eventhe simplest turbulent 6ows. We present numerical simulations of three dimensional, homogeneous and isotropic turbulence at moderate Reynolds numbers. We externally drive the 6uid with either helical or non-helical forces. In both cases we ;nd that the externally driven system relaxes to a stationary turbulent regime, which is compatible with the Kolmogorov spectrum Ek ≈ k−5=3 . Inthe helical case, we con;rm that the kinetic helicity also cascades directly, along with energy and displaying a Kolmogorov spectrum as well. We ;nd that the dissipation scale of both ideal invariants is also consistent with the Kolmogorov scale (i.e., k ≈ ( = 3 )1=4). Fil: Gomez, Daniel Osvaldo. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina Fil: Mininni, Pablo Daniel. 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 |
description |
Turbulence is one of the important problems in classical physics that still remain unsolved. The Navier–Stokes equations have been studied for almost two centuries now, and although they seem to properly describe the dynamics of 6uids, we still do not have a clear understanding of eventhe simplest turbulent 6ows. We present numerical simulations of three dimensional, homogeneous and isotropic turbulence at moderate Reynolds numbers. We externally drive the 6uid with either helical or non-helical forces. In both cases we ;nd that the externally driven system relaxes to a stationary turbulent regime, which is compatible with the Kolmogorov spectrum Ek ≈ k−5=3 . Inthe helical case, we con;rm that the kinetic helicity also cascades directly, along with energy and displaying a Kolmogorov spectrum as well. We ;nd that the dissipation scale of both ideal invariants is also consistent with the Kolmogorov scale (i.e., k ≈ ( = 3 )1=4). |
publishDate |
2004 |
dc.date.none.fl_str_mv |
2004-12 |
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/11336/22433 Gomez, Daniel Osvaldo; Mininni, Pablo Daniel; Understanding turbulence through numerical simulations; Elsevier Science; Physica A: Statistical Mechanics and its Applications; 342; 1-2; 12-2004; 69-75 0378-4371 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/22433 |
identifier_str_mv |
Gomez, Daniel Osvaldo; Mininni, Pablo Daniel; Understanding turbulence through numerical simulations; Elsevier Science; Physica A: Statistical Mechanics and its Applications; 342; 1-2; 12-2004; 69-75 0378-4371 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.physa.2004.04.061 info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0378437104004753 |
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 |
Elsevier Science |
publisher.none.fl_str_mv |
Elsevier Science |
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_ |
1844613952388988928 |
score |
13.070432 |