Natural convection in a cubical cavity filled with a fluid showing temperature-dependent viscosity
- Autores
- Silin, Nicolas; Dari, Enzo Alberto; Córdoba, Paola A.
- Año de publicación
- 2015
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- We present a numerical and experimental study of laminar natural convection flow in a fluid filled cubical cavity. The fluid is a dielectric oil used for cooling distribution and power transformers. As most liquids, this oil exhibits temperature-dependent viscosity. The cubical cavity of interest has an imposed temperature difference between two opposite vertical walls while the other walls are insulated. The cavity dimensions are 0.1 m × 0.1 m × 0.1 m. Four characteristic Rayleigh numbers ranging from 1.7 × 108 to 6.3 × 108 were analyzed. The numerical study was carried out by applying the Finite Element Method to solve the 3D Navier?Stokes and heat equations using the in-house developed Par-GPFEP code. The influence of temperature-dependent viscosity on the total transferred heat and on the flow pattern, have been evaluated. Although there are several studies regarding the flow in a square cavity in this configuration, there is limited information in the literature on the 3D flow in cubical cavities with variable properties of the working fluid. We could not find in the open literature experimental measurements that we could use to validate our numerical results. For this reason an experimental setup was developed. The velocity field was visualized and measured by Particle Image Velocimetry (PIV). The temperature profiles in the vertical mid-axis at mid-plane of the cavity were measured and compared with the numerical results. We found reasonable agreement between numerical simulations and experimental measurements.
Fil: Silin, Nicolas. Comision Nacional de Energia Atomica. Gerencia de Area de Aplicaciones de la Tecnologia Nuclear. Gerencia de Investigacion Aplicada. Grupo de Materiales Nucleares; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Area de Energía Nuclear. Instituto Balseiro; Argentina
Fil: Dari, Enzo Alberto. Comision Nacional de Energia Atomica. Gerencia de Area de Aplicaciones de la Tecnologia Nuclear. Gerencia de Investigacion Aplicada. Grupo de Mecanica Computacional; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Area de Energía Nuclear. Instituto Balseiro; Argentina
Fil: Córdoba, Paola A.. Comision Nacional de Energia Atomica. Gerencia de Area de Aplicaciones de la Tecnologia Nuclear. Gerencia de Investigacion Aplicada. Grupo de Mecanica Computacional; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Area de Energía Nuclear. Instituto Balseiro; Argentina - Materia
-
Natural Convection
Cubical Cavity
Temperature-Dependent Viscosity
Finite Element Method - 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:11336/2702
Ver los metadatos del registro completo
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Natural convection in a cubical cavity filled with a fluid showing temperature-dependent viscositySilin, NicolasDari, Enzo AlbertoCórdoba, Paola A.Natural ConvectionCubical CavityTemperature-Dependent ViscosityFinite Element Methodhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1https://purl.org/becyt/ford/2.7https://purl.org/becyt/ford/2We present a numerical and experimental study of laminar natural convection flow in a fluid filled cubical cavity. The fluid is a dielectric oil used for cooling distribution and power transformers. As most liquids, this oil exhibits temperature-dependent viscosity. The cubical cavity of interest has an imposed temperature difference between two opposite vertical walls while the other walls are insulated. The cavity dimensions are 0.1 m × 0.1 m × 0.1 m. Four characteristic Rayleigh numbers ranging from 1.7 × 10<sup>8</sup> to 6.3 × 10<sup>8</sup> were analyzed. The numerical study was carried out by applying the Finite Element Method to solve the 3D Navier?Stokes and heat equations using the in-house developed Par-GPFEP code. The influence of temperature-dependent viscosity on the total transferred heat and on the flow pattern, have been evaluated. Although there are several studies regarding the flow in a square cavity in this configuration, there is limited information in the literature on the 3D flow in cubical cavities with variable properties of the working fluid. We could not find in the open literature experimental measurements that we could use to validate our numerical results. For this reason an experimental setup was developed. The velocity field was visualized and measured by Particle Image Velocimetry (PIV). The temperature profiles in the vertical mid-axis at mid-plane of the cavity were measured and compared with the numerical results. We found reasonable agreement between numerical simulations and experimental measurements.Fil: Silin, Nicolas. Comision Nacional de Energia Atomica. Gerencia de Area de Aplicaciones de la Tecnologia Nuclear. Gerencia de Investigacion Aplicada. Grupo de Materiales Nucleares; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Area de Energía Nuclear. Instituto Balseiro; ArgentinaFil: Dari, Enzo Alberto. Comision Nacional de Energia Atomica. Gerencia de Area de Aplicaciones de la Tecnologia Nuclear. Gerencia de Investigacion Aplicada. Grupo de Mecanica Computacional; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Area de Energía Nuclear. Instituto Balseiro; ArgentinaFil: Córdoba, Paola A.. Comision Nacional de Energia Atomica. Gerencia de Area de Aplicaciones de la Tecnologia Nuclear. Gerencia de Investigacion Aplicada. Grupo de Mecanica Computacional; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Area de Energía Nuclear. Instituto Balseiro; ArgentinaElsevier France-editions Scientifiques Medicales Elsevier2015-08-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/2702Silin, Nicolas; Dari, Enzo Alberto; Córdoba, Paola A.; Natural convection in a cubical cavity filled with a fluid showing temperature-dependent viscosity; Elsevier France-editions Scientifiques Medicales Elsevier; International Journal Of Thermal Sciences; 98; 11-8-2015; 255-2651290-0729enginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S1290072915002033info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:50:00Zoai:ri.conicet.gov.ar:11336/2702instacron: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 09:50:00.557CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Natural convection in a cubical cavity filled with a fluid showing temperature-dependent viscosity |
title |
Natural convection in a cubical cavity filled with a fluid showing temperature-dependent viscosity |
spellingShingle |
Natural convection in a cubical cavity filled with a fluid showing temperature-dependent viscosity Silin, Nicolas Natural Convection Cubical Cavity Temperature-Dependent Viscosity Finite Element Method |
title_short |
Natural convection in a cubical cavity filled with a fluid showing temperature-dependent viscosity |
title_full |
Natural convection in a cubical cavity filled with a fluid showing temperature-dependent viscosity |
title_fullStr |
Natural convection in a cubical cavity filled with a fluid showing temperature-dependent viscosity |
title_full_unstemmed |
Natural convection in a cubical cavity filled with a fluid showing temperature-dependent viscosity |
title_sort |
Natural convection in a cubical cavity filled with a fluid showing temperature-dependent viscosity |
dc.creator.none.fl_str_mv |
Silin, Nicolas Dari, Enzo Alberto Córdoba, Paola A. |
author |
Silin, Nicolas |
author_facet |
Silin, Nicolas Dari, Enzo Alberto Córdoba, Paola A. |
author_role |
author |
author2 |
Dari, Enzo Alberto Córdoba, Paola A. |
author2_role |
author author |
dc.subject.none.fl_str_mv |
Natural Convection Cubical Cavity Temperature-Dependent Viscosity Finite Element Method |
topic |
Natural Convection Cubical Cavity Temperature-Dependent Viscosity Finite Element Method |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 https://purl.org/becyt/ford/2.7 https://purl.org/becyt/ford/2 |
dc.description.none.fl_txt_mv |
We present a numerical and experimental study of laminar natural convection flow in a fluid filled cubical cavity. The fluid is a dielectric oil used for cooling distribution and power transformers. As most liquids, this oil exhibits temperature-dependent viscosity. The cubical cavity of interest has an imposed temperature difference between two opposite vertical walls while the other walls are insulated. The cavity dimensions are 0.1 m × 0.1 m × 0.1 m. Four characteristic Rayleigh numbers ranging from 1.7 × 10<sup>8</sup> to 6.3 × 10<sup>8</sup> were analyzed. The numerical study was carried out by applying the Finite Element Method to solve the 3D Navier?Stokes and heat equations using the in-house developed Par-GPFEP code. The influence of temperature-dependent viscosity on the total transferred heat and on the flow pattern, have been evaluated. Although there are several studies regarding the flow in a square cavity in this configuration, there is limited information in the literature on the 3D flow in cubical cavities with variable properties of the working fluid. We could not find in the open literature experimental measurements that we could use to validate our numerical results. For this reason an experimental setup was developed. The velocity field was visualized and measured by Particle Image Velocimetry (PIV). The temperature profiles in the vertical mid-axis at mid-plane of the cavity were measured and compared with the numerical results. We found reasonable agreement between numerical simulations and experimental measurements. Fil: Silin, Nicolas. Comision Nacional de Energia Atomica. Gerencia de Area de Aplicaciones de la Tecnologia Nuclear. Gerencia de Investigacion Aplicada. Grupo de Materiales Nucleares; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Area de Energía Nuclear. Instituto Balseiro; Argentina Fil: Dari, Enzo Alberto. Comision Nacional de Energia Atomica. Gerencia de Area de Aplicaciones de la Tecnologia Nuclear. Gerencia de Investigacion Aplicada. Grupo de Mecanica Computacional; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Area de Energía Nuclear. Instituto Balseiro; Argentina Fil: Córdoba, Paola A.. Comision Nacional de Energia Atomica. Gerencia de Area de Aplicaciones de la Tecnologia Nuclear. Gerencia de Investigacion Aplicada. Grupo de Mecanica Computacional; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Area de Energía Nuclear. Instituto Balseiro; Argentina |
description |
We present a numerical and experimental study of laminar natural convection flow in a fluid filled cubical cavity. The fluid is a dielectric oil used for cooling distribution and power transformers. As most liquids, this oil exhibits temperature-dependent viscosity. The cubical cavity of interest has an imposed temperature difference between two opposite vertical walls while the other walls are insulated. The cavity dimensions are 0.1 m × 0.1 m × 0.1 m. Four characteristic Rayleigh numbers ranging from 1.7 × 10<sup>8</sup> to 6.3 × 10<sup>8</sup> were analyzed. The numerical study was carried out by applying the Finite Element Method to solve the 3D Navier?Stokes and heat equations using the in-house developed Par-GPFEP code. The influence of temperature-dependent viscosity on the total transferred heat and on the flow pattern, have been evaluated. Although there are several studies regarding the flow in a square cavity in this configuration, there is limited information in the literature on the 3D flow in cubical cavities with variable properties of the working fluid. We could not find in the open literature experimental measurements that we could use to validate our numerical results. For this reason an experimental setup was developed. The velocity field was visualized and measured by Particle Image Velocimetry (PIV). The temperature profiles in the vertical mid-axis at mid-plane of the cavity were measured and compared with the numerical results. We found reasonable agreement between numerical simulations and experimental measurements. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-08-11 |
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/11336/2702 Silin, Nicolas; Dari, Enzo Alberto; Córdoba, Paola A.; Natural convection in a cubical cavity filled with a fluid showing temperature-dependent viscosity; Elsevier France-editions Scientifiques Medicales Elsevier; International Journal Of Thermal Sciences; 98; 11-8-2015; 255-265 1290-0729 |
url |
http://hdl.handle.net/11336/2702 |
identifier_str_mv |
Silin, Nicolas; Dari, Enzo Alberto; Córdoba, Paola A.; Natural convection in a cubical cavity filled with a fluid showing temperature-dependent viscosity; Elsevier France-editions Scientifiques Medicales Elsevier; International Journal Of Thermal Sciences; 98; 11-8-2015; 255-265 1290-0729 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S1290072915002033 |
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 |
Elsevier France-editions Scientifiques Medicales Elsevier |
publisher.none.fl_str_mv |
Elsevier France-editions Scientifiques Medicales Elsevier |
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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1844613543771504640 |
score |
13.070432 |