Numerical simulation of a cubical cavity filled with oil showing temperature-dependent viscosity

Autores
Córdoba Estrada, Paola Andrea; Silin, Nicolas; Dari, Enzo Alberto
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We performed a numerical and experimental study of laminar natural convection flow in an oil filled cubical cavity. The fluid is a dielectric oil used for cooling distribution and power transformers. This fluid has 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 0.1m x 0.1m x 0.1m were a flow with a characteristic Rayleigh number Ra = 1.7 × 108 was obtained. 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 the temperature viscosity dependence on total heat transferred and the flow pattern have been evaluated. An experimental setup was developed to validate the numerical results. 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. Although there are several studies of the flow in a square cavity in this configuration, there is limited information in the literature regarding 3D flow in cubical cavities with variable properties of the working fluid. This work provides numerical and experimental data in this wide unexplored problem that can be used as benchmark to validate CFD models as well as to understand how to optimize devices based on natural convection cooling processes.
Fil: Córdoba Estrada, Paola Andrea. Comisión Nacional de Energía Atómica. Gerencia de Área de Aplicaciones de la Tecnología Nuclear. Gerencia de Investigación Aplicada; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Silin, Nicolas. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Gerencia de Área de Aplicaciones de la Tecnología Nuclear. Gerencia de Investigación Aplicada; Argentina
Fil: Dari, Enzo Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Gerencia de Área de Aplicaciones de la Tecnología Nuclear. Gerencia de Investigación Aplicada; 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
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/36155
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/36155
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Numerical simulation of a cubical cavity filled with oil showing temperature-dependent viscosityCórdoba Estrada, Paola AndreaSilin, NicolasDari, Enzo AlbertoNatural convectionCubical CavityTemperature-dependent viscosityFinite Element Methodhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We performed a numerical and experimental study of laminar natural convection flow in an oil filled cubical cavity. The fluid is a dielectric oil used for cooling distribution and power transformers. This fluid has 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 0.1m x 0.1m x 0.1m were a flow with a characteristic Rayleigh number Ra = 1.7 × 108 was obtained. 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 the temperature viscosity dependence on total heat transferred and the flow pattern have been evaluated. An experimental setup was developed to validate the numerical results. 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. Although there are several studies of the flow in a square cavity in this configuration, there is limited information in the literature regarding 3D flow in cubical cavities with variable properties of the working fluid. This work provides numerical and experimental data in this wide unexplored problem that can be used as benchmark to validate CFD models as well as to understand how to optimize devices based on natural convection cooling processes.Fil: Córdoba Estrada, Paola Andrea. Comisión Nacional de Energía Atómica. Gerencia de Área de Aplicaciones de la Tecnología Nuclear. Gerencia de Investigación Aplicada; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Silin, Nicolas. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Gerencia de Área de Aplicaciones de la Tecnología Nuclear. Gerencia de Investigación Aplicada; ArgentinaFil: Dari, Enzo Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Gerencia de Área de Aplicaciones de la Tecnología Nuclear. Gerencia de Investigación Aplicada; ArgentinaAsociación Argentina de Mecánica Computacional2014-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/36155Córdoba Estrada, Paola Andrea; Silin, Nicolas; Dari, Enzo Alberto; Numerical simulation of a cubical cavity filled with oil showing temperature-dependent viscosity; Asociación Argentina de Mecánica Computacional; Mecánica Computacional; XXXIII; 53; 9-2014; 3487-35012591-3522CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.cimec.org.ar/ojs/index.php/mc/article/view/4932info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:26:31Zoai:ri.conicet.gov.ar:11336/36155instacron: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 10:26:31.633CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Numerical simulation of a cubical cavity filled with oil showing temperature-dependent viscosity
title Numerical simulation of a cubical cavity filled with oil showing temperature-dependent viscosity
spellingShingle Numerical simulation of a cubical cavity filled with oil showing temperature-dependent viscosity
Córdoba Estrada, Paola Andrea
Natural convection
Cubical Cavity
Temperature-dependent viscosity
Finite Element Method
title_short Numerical simulation of a cubical cavity filled with oil showing temperature-dependent viscosity
title_full Numerical simulation of a cubical cavity filled with oil showing temperature-dependent viscosity
title_fullStr Numerical simulation of a cubical cavity filled with oil showing temperature-dependent viscosity
title_full_unstemmed Numerical simulation of a cubical cavity filled with oil showing temperature-dependent viscosity
title_sort Numerical simulation of a cubical cavity filled with oil showing temperature-dependent viscosity
dc.creator.none.fl_str_mv Córdoba Estrada, Paola Andrea
Silin, Nicolas
Dari, Enzo Alberto
author Córdoba Estrada, Paola Andrea
author_facet Córdoba Estrada, Paola Andrea
Silin, Nicolas
Dari, Enzo Alberto
author_role author
author2 Silin, Nicolas
Dari, Enzo Alberto
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
dc.description.none.fl_txt_mv We performed a numerical and experimental study of laminar natural convection flow in an oil filled cubical cavity. The fluid is a dielectric oil used for cooling distribution and power transformers. This fluid has 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 0.1m x 0.1m x 0.1m were a flow with a characteristic Rayleigh number Ra = 1.7 × 108 was obtained. 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 the temperature viscosity dependence on total heat transferred and the flow pattern have been evaluated. An experimental setup was developed to validate the numerical results. 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. Although there are several studies of the flow in a square cavity in this configuration, there is limited information in the literature regarding 3D flow in cubical cavities with variable properties of the working fluid. This work provides numerical and experimental data in this wide unexplored problem that can be used as benchmark to validate CFD models as well as to understand how to optimize devices based on natural convection cooling processes.
Fil: Córdoba Estrada, Paola Andrea. Comisión Nacional de Energía Atómica. Gerencia de Área de Aplicaciones de la Tecnología Nuclear. Gerencia de Investigación Aplicada; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Silin, Nicolas. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Gerencia de Área de Aplicaciones de la Tecnología Nuclear. Gerencia de Investigación Aplicada; Argentina
Fil: Dari, Enzo Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica. Gerencia de Área de Aplicaciones de la Tecnología Nuclear. Gerencia de Investigación Aplicada; Argentina
description We performed a numerical and experimental study of laminar natural convection flow in an oil filled cubical cavity. The fluid is a dielectric oil used for cooling distribution and power transformers. This fluid has 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 0.1m x 0.1m x 0.1m were a flow with a characteristic Rayleigh number Ra = 1.7 × 108 was obtained. 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 the temperature viscosity dependence on total heat transferred and the flow pattern have been evaluated. An experimental setup was developed to validate the numerical results. 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. Although there are several studies of the flow in a square cavity in this configuration, there is limited information in the literature regarding 3D flow in cubical cavities with variable properties of the working fluid. This work provides numerical and experimental data in this wide unexplored problem that can be used as benchmark to validate CFD models as well as to understand how to optimize devices based on natural convection cooling processes.
publishDate 2014
dc.date.none.fl_str_mv 2014-09
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/11336/36155
Córdoba Estrada, Paola Andrea; Silin, Nicolas; Dari, Enzo Alberto; Numerical simulation of a cubical cavity filled with oil showing temperature-dependent viscosity; Asociación Argentina de Mecánica Computacional; Mecánica Computacional; XXXIII; 53; 9-2014; 3487-3501
2591-3522
CONICET Digital
CONICET
url http://hdl.handle.net/11336/36155
identifier_str_mv Córdoba Estrada, Paola Andrea; Silin, Nicolas; Dari, Enzo Alberto; Numerical simulation of a cubical cavity filled with oil showing temperature-dependent viscosity; Asociación Argentina de Mecánica Computacional; Mecánica Computacional; XXXIII; 53; 9-2014; 3487-3501
2591-3522
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.cimec.org.ar/ojs/index.php/mc/article/view/4932
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 Asociación Argentina de Mecánica Computacional
publisher.none.fl_str_mv Asociación Argentina de Mecánica Computacional
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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