Note on a thermal law of the wall for separating and recirculating flows

Detalhes bibliográficos
Autor(a) principal: Cruz, Daniel Onofre de Almeida
Data de Publicação: 2002
Outros Autores: Freire, Atila Pantaleão Silva
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRJ
Texto Completo: http://hdl.handle.net/11422/8830
Resumo: The characteristics of the turbulent boundary layer near a separation point are studied here. The emphasis is on providing analytical expressions for the velocity and temperature near-wall solutions which are also valid in the region of reverse flow. These expressions can then be used as boundary conditions in numerical schemes that use two-equation differential models. The paper proposes a new expression for the description of the near-wall characteristic length. The temperature profiles near the wall are described by a newly proposed expression that reduces to a logarithmic profile in the attached region, and assumes a minus half power law profile at the separation point.
id UFRJ_b99d0062f116cda656991e5367eaafc4
oai_identifier_str oai:pantheon.ufrj.br:11422/8830
network_acronym_str UFRJ
network_name_str Repositório Institucional da UFRJ
repository_id_str
spelling Note on a thermal law of the wall for separating and recirculating flowsTurbulenceBoundary layerThermal lawCNPQ::CIENCIAS EXATAS E DA TERRA::FISICA::AREAS CLASSICAS DE FENOMENOLOGIA E SUAS APLICACOES::DINAMICA DOS FLUIDOSThe characteristics of the turbulent boundary layer near a separation point are studied here. The emphasis is on providing analytical expressions for the velocity and temperature near-wall solutions which are also valid in the region of reverse flow. These expressions can then be used as boundary conditions in numerical schemes that use two-equation differential models. The paper proposes a new expression for the description of the near-wall characteristic length. The temperature profiles near the wall are described by a newly proposed expression that reduces to a logarithmic profile in the attached region, and assumes a minus half power law profile at the separation point.Indisponível.ElsevierBrasilNúcleo Interdisciplinar de Dinâmica dos Fluidos2019-07-16T18:19:44Z2023-12-21T03:01:25Z2002-01-17info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article0017-9310http://hdl.handle.net/11422/883010.1016/S0017-9310(01)00232-0engInternational Journal of Heat and Mass TransferCruz, Daniel Onofre de AlmeidaFreire, Atila Pantaleão Silvainfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRJinstname:Universidade Federal do Rio de Janeiro (UFRJ)instacron:UFRJ2023-12-21T03:01:25Zoai:pantheon.ufrj.br:11422/8830Repositório InstitucionalPUBhttp://www.pantheon.ufrj.br/oai/requestpantheon@sibi.ufrj.bropendoar:2023-12-21T03:01:25Repositório Institucional da UFRJ - Universidade Federal do Rio de Janeiro (UFRJ)false
dc.title.none.fl_str_mv Note on a thermal law of the wall for separating and recirculating flows
title Note on a thermal law of the wall for separating and recirculating flows
spellingShingle Note on a thermal law of the wall for separating and recirculating flows
Cruz, Daniel Onofre de Almeida
Turbulence
Boundary layer
Thermal law
CNPQ::CIENCIAS EXATAS E DA TERRA::FISICA::AREAS CLASSICAS DE FENOMENOLOGIA E SUAS APLICACOES::DINAMICA DOS FLUIDOS
title_short Note on a thermal law of the wall for separating and recirculating flows
title_full Note on a thermal law of the wall for separating and recirculating flows
title_fullStr Note on a thermal law of the wall for separating and recirculating flows
title_full_unstemmed Note on a thermal law of the wall for separating and recirculating flows
title_sort Note on a thermal law of the wall for separating and recirculating flows
author Cruz, Daniel Onofre de Almeida
author_facet Cruz, Daniel Onofre de Almeida
Freire, Atila Pantaleão Silva
author_role author
author2 Freire, Atila Pantaleão Silva
author2_role author
dc.contributor.author.fl_str_mv Cruz, Daniel Onofre de Almeida
Freire, Atila Pantaleão Silva
dc.subject.por.fl_str_mv Turbulence
Boundary layer
Thermal law
CNPQ::CIENCIAS EXATAS E DA TERRA::FISICA::AREAS CLASSICAS DE FENOMENOLOGIA E SUAS APLICACOES::DINAMICA DOS FLUIDOS
topic Turbulence
Boundary layer
Thermal law
CNPQ::CIENCIAS EXATAS E DA TERRA::FISICA::AREAS CLASSICAS DE FENOMENOLOGIA E SUAS APLICACOES::DINAMICA DOS FLUIDOS
description The characteristics of the turbulent boundary layer near a separation point are studied here. The emphasis is on providing analytical expressions for the velocity and temperature near-wall solutions which are also valid in the region of reverse flow. These expressions can then be used as boundary conditions in numerical schemes that use two-equation differential models. The paper proposes a new expression for the description of the near-wall characteristic length. The temperature profiles near the wall are described by a newly proposed expression that reduces to a logarithmic profile in the attached region, and assumes a minus half power law profile at the separation point.
publishDate 2002
dc.date.none.fl_str_mv 2002-01-17
2019-07-16T18:19:44Z
2023-12-21T03:01:25Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv 0017-9310
http://hdl.handle.net/11422/8830
10.1016/S0017-9310(01)00232-0
identifier_str_mv 0017-9310
10.1016/S0017-9310(01)00232-0
url http://hdl.handle.net/11422/8830
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv International Journal of Heat and Mass Transfer
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
Brasil
Núcleo Interdisciplinar de Dinâmica dos Fluidos
publisher.none.fl_str_mv Elsevier
Brasil
Núcleo Interdisciplinar de Dinâmica dos Fluidos
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFRJ
instname:Universidade Federal do Rio de Janeiro (UFRJ)
instacron:UFRJ
instname_str Universidade Federal do Rio de Janeiro (UFRJ)
instacron_str UFRJ
institution UFRJ
reponame_str Repositório Institucional da UFRJ
collection Repositório Institucional da UFRJ
repository.name.fl_str_mv Repositório Institucional da UFRJ - Universidade Federal do Rio de Janeiro (UFRJ)
repository.mail.fl_str_mv pantheon@sibi.ufrj.br
_version_ 1815455992657215488

Registros relacionados