Estudio numérico de flujos turbulentos isotérmicos en canales y flujos laminares con convección mixta en cavidades

Detalhes bibliográficos
Autor(a) principal: Santos, Elizaldo Domingues dos
Data de Publicação: 2011
Outros Autores: Xavier, Carla Marques, Petry, Adriane Prisco
Tipo de documento: Artigo
Idioma: spa
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/108695
Resumo: A numerical study about three-dimensional steady state turbulent channel flows and laminar transient cavity flows with mixed convection heat transfer has been done. The solution of the conservation equations is obtained by means of Finite Element Method and Taylor-Galerkin explicit scheme. Large Eddy Simulation is employed for the treatment of turbulence. For the isothermal case, flows with Re = 3300 were simulated using the Smagorinsky and Dynamical subgrid models. The latter model allowed improving the average velocity profiles as well as turbulence statistics. The transient velocity and temperature fields were compared with results of the literature, leading to a deviation lower than 6%.
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spelling Santos, Elizaldo Domingues dosXavier, Carla MarquesPetry, Adriane Prisco2014-12-25T02:10:33Z20110718-0764http://hdl.handle.net/10183/108695000892127A numerical study about three-dimensional steady state turbulent channel flows and laminar transient cavity flows with mixed convection heat transfer has been done. The solution of the conservation equations is obtained by means of Finite Element Method and Taylor-Galerkin explicit scheme. Large Eddy Simulation is employed for the treatment of turbulence. For the isothermal case, flows with Re = 3300 were simulated using the Smagorinsky and Dynamical subgrid models. The latter model allowed improving the average velocity profiles as well as turbulence statistics. The transient velocity and temperature fields were compared with results of the literature, leading to a deviation lower than 6%.Se ha realizado un estudio numérico sobre flujos estacionarios turbulentos, en canales tridimensionales y flujos transitorios laminares en cavidades con transferencia de calor por convección mixta. Las ecuaciones de conservación se resuelven a través del Método de Elementos Finitos utilizando esquema temporal explicito de Taylor-Galerkin. La simulación de Grandes Escalas se emplea para el tratamiento de la turbulencia. Para el caso isotérmico, flujos con Re = 3300 son simulados usando los modelos submalla de Smagorinsky y Dinámico. Este último modelo permitió mejorar los perfiles de velocidad media y las estadísticas de la turbulencia. Los campos transitorios de velocidad y temperatura se compararon con los resultados de la literatura, obteniéndose un desvío inferior a 6%.application/pdfspaInformación tecnológica [recurso eletrônico]. La Serena. Vol. 22, n. 1, p. 71-82Escoamento turbulentoEquações de transporteModelos matemáticosTurbulent flowLaminar flowMixed convectionCavitiesNumerical methodsFlujo turbulentoFlujo laminarConvección mixtaCavidadesMétodos numéricosEstudio numérico de flujos turbulentos isotérmicos en canales y flujos laminares con convección mixta en cavidadesNumerical study of isothermal turbulent channel flows and mixed convection laminar cavity flows Estrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL000892127.pdf000892127.pdfTexto completo (espanhol)application/pdf646316http://www.lume.ufrgs.br/bitstream/10183/108695/1/000892127.pdffb7b4d201da15d88f3dbca548a6b04e8MD51TEXT000892127.pdf.txt000892127.pdf.txtExtracted Texttext/plain32532http://www.lume.ufrgs.br/bitstream/10183/108695/2/000892127.pdf.txtca9aa74fee873a85913b8785597b6cf4MD52THUMBNAIL000892127.pdf.jpg000892127.pdf.jpgGenerated Thumbnailimage/jpeg2060http://www.lume.ufrgs.br/bitstream/10183/108695/3/000892127.pdf.jpg2122a6ffcaeceb135f068877c122bf44MD5310183/1086952023-06-25 03:44:08.408031oai:www.lume.ufrgs.br:10183/108695Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-06-25T06:44:08Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Estudio numérico de flujos turbulentos isotérmicos en canales y flujos laminares con convección mixta en cavidades
dc.title.alternative.en.fl_str_mv Numerical study of isothermal turbulent channel flows and mixed convection laminar cavity flows
title Estudio numérico de flujos turbulentos isotérmicos en canales y flujos laminares con convección mixta en cavidades
spellingShingle Estudio numérico de flujos turbulentos isotérmicos en canales y flujos laminares con convección mixta en cavidades
Santos, Elizaldo Domingues dos
Escoamento turbulento
Equações de transporte
Modelos matemáticos
Turbulent flow
Laminar flow
Mixed convection
Cavities
Numerical methods
Flujo turbulento
Flujo laminar
Convección mixta
Cavidades
Métodos numéricos
title_short Estudio numérico de flujos turbulentos isotérmicos en canales y flujos laminares con convección mixta en cavidades
title_full Estudio numérico de flujos turbulentos isotérmicos en canales y flujos laminares con convección mixta en cavidades
title_fullStr Estudio numérico de flujos turbulentos isotérmicos en canales y flujos laminares con convección mixta en cavidades
title_full_unstemmed Estudio numérico de flujos turbulentos isotérmicos en canales y flujos laminares con convección mixta en cavidades
title_sort Estudio numérico de flujos turbulentos isotérmicos en canales y flujos laminares con convección mixta en cavidades
author Santos, Elizaldo Domingues dos
author_facet Santos, Elizaldo Domingues dos
Xavier, Carla Marques
Petry, Adriane Prisco
author_role author
author2 Xavier, Carla Marques
Petry, Adriane Prisco
author2_role author
author
dc.contributor.author.fl_str_mv Santos, Elizaldo Domingues dos
Xavier, Carla Marques
Petry, Adriane Prisco
dc.subject.por.fl_str_mv Escoamento turbulento
Equações de transporte
Modelos matemáticos
topic Escoamento turbulento
Equações de transporte
Modelos matemáticos
Turbulent flow
Laminar flow
Mixed convection
Cavities
Numerical methods
Flujo turbulento
Flujo laminar
Convección mixta
Cavidades
Métodos numéricos
dc.subject.eng.fl_str_mv Turbulent flow
Laminar flow
Mixed convection
Cavities
Numerical methods
dc.subject.spa.fl_str_mv Flujo turbulento
Flujo laminar
Convección mixta
Cavidades
Métodos numéricos
description A numerical study about three-dimensional steady state turbulent channel flows and laminar transient cavity flows with mixed convection heat transfer has been done. The solution of the conservation equations is obtained by means of Finite Element Method and Taylor-Galerkin explicit scheme. Large Eddy Simulation is employed for the treatment of turbulence. For the isothermal case, flows with Re = 3300 were simulated using the Smagorinsky and Dynamical subgrid models. The latter model allowed improving the average velocity profiles as well as turbulence statistics. The transient velocity and temperature fields were compared with results of the literature, leading to a deviation lower than 6%.
publishDate 2011
dc.date.issued.fl_str_mv 2011
dc.date.accessioned.fl_str_mv 2014-12-25T02:10:33Z
dc.type.driver.fl_str_mv Estrangeiro
info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10183/108695
dc.identifier.issn.pt_BR.fl_str_mv 0718-0764
dc.identifier.nrb.pt_BR.fl_str_mv 000892127
identifier_str_mv 0718-0764
000892127
url http://hdl.handle.net/10183/108695
dc.language.iso.fl_str_mv spa
language spa
dc.relation.ispartof.pt_BR.fl_str_mv Información tecnológica [recurso eletrônico]. La Serena. Vol. 22, n. 1, p. 71-82
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
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dc.source.none.fl_str_mv reponame:Repositório Institucional da UFRGS
instname:Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
instname_str Universidade Federal do Rio Grande do Sul (UFRGS)
instacron_str UFRGS
institution UFRGS
reponame_str Repositório Institucional da UFRGS
collection Repositório Institucional da UFRGS
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