Wall function treatment for bubbly boundary layers at low void fractions

Detalhes bibliográficos
Autor(a) principal: Soares, Daniel Vieira
Data de Publicação: 2018
Outros Autores: Bitencourt, Marcelo C., Loureiro, Juliana Braga Rodrigues, Freire, Atila Pantaleão Silva
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRJ
Texto Completo: http://hdl.handle.net/11422/8271
Resumo: Indisponível.
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spelling Soares, Daniel VieiraBitencourt, Marcelo C.Loureiro, Juliana Braga RodriguesFreire, Atila Pantaleão Silva2019-06-03T13:21:02Z2023-11-30T03:03:28Z2018-02-261678-2690http://hdl.handle.net/11422/827110.1590/0001-3765201820170101Indisponível.The present work investigates the role of different treatments of the lower boundary condition on the numerical prediction of bubbly flows. Two different wall function formulations are tested against experimental data obtained for bubbly boundary layers: (i) a new analytical solution derived through asymptotic techniques and (ii) the previous formulation of Troshko and Hassan (IJHMT, 44, 871-875, 2001a). A modified k-e model is used to close the averaged Navier-Stokes equations together with the hypothesis that turbulence can be modelled by a linear superposition of bubble and shear induced eddy viscosities. The work shows, in particular, how four corrections must the implemented in the standard single-phase k-e model to account for the effects of bubbles. The numerical implementation of the near wall functions is made through a finite elements code.Submitted by Jairo Amaro (jairo.amaro@sibi.ufrj.br) on 2019-06-03T13:21:02Z No. of bitstreams: 1 2-2018_Wall-function-treatment-min.pdf: 396519 bytes, checksum: 0863f27b1e454c19ba64228552285226 (MD5)Made available in DSpace on 2019-06-03T13:21:02Z (GMT). No. of bitstreams: 1 2-2018_Wall-function-treatment-min.pdf: 396519 bytes, checksum: 0863f27b1e454c19ba64228552285226 (MD5) Previous issue date: 2018-02-26engAcademia Brasileira de CiênciasBrasilNúcleo Interdisciplinar de Dinâmica dos FluidosAnais da Academia Brasileira de CiênciasCNPQ::CIENCIAS EXATAS E DA TERRA::FISICA::AREAS CLASSICAS DE FENOMENOLOGIA E SUAS APLICACOES::DINAMICA DOS FLUIDOSBubbly flowLaw of the wallPipe flowTurbulenceWall function treatment for bubbly boundary layers at low void fractionsinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article901573590abertoinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRJinstname:Universidade Federal do Rio de Janeiro (UFRJ)instacron:UFRJLICENSElicense.txtlicense.txttext/plain; charset=utf-81853http://pantheon.ufrj.br:80/bitstream/11422/8271/2/license.txtdd32849f2bfb22da963c3aac6e26e255MD52ORIGINAL2-2018_Wall-function-treatment-min.pdf2-2018_Wall-function-treatment-min.pdfapplication/pdf396519http://pantheon.ufrj.br:80/bitstream/11422/8271/1/2-2018_Wall-function-treatment-min.pdf0863f27b1e454c19ba64228552285226MD5111422/82712023-11-30 00:03:28.635oai:pantheon.ufrj.br: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Repositório de PublicaçõesPUBhttp://www.pantheon.ufrj.br/oai/requestopendoar:2023-11-30T03:03:28Repositório Institucional da UFRJ - Universidade Federal do Rio de Janeiro (UFRJ)false
dc.title.en.fl_str_mv Wall function treatment for bubbly boundary layers at low void fractions
title Wall function treatment for bubbly boundary layers at low void fractions
spellingShingle Wall function treatment for bubbly boundary layers at low void fractions
Soares, Daniel Vieira
CNPQ::CIENCIAS EXATAS E DA TERRA::FISICA::AREAS CLASSICAS DE FENOMENOLOGIA E SUAS APLICACOES::DINAMICA DOS FLUIDOS
Bubbly flow
Law of the wall
Pipe flow
Turbulence
title_short Wall function treatment for bubbly boundary layers at low void fractions
title_full Wall function treatment for bubbly boundary layers at low void fractions
title_fullStr Wall function treatment for bubbly boundary layers at low void fractions
title_full_unstemmed Wall function treatment for bubbly boundary layers at low void fractions
title_sort Wall function treatment for bubbly boundary layers at low void fractions
author Soares, Daniel Vieira
author_facet Soares, Daniel Vieira
Bitencourt, Marcelo C.
Loureiro, Juliana Braga Rodrigues
Freire, Atila Pantaleão Silva
author_role author
author2 Bitencourt, Marcelo C.
Loureiro, Juliana Braga Rodrigues
Freire, Atila Pantaleão Silva
author2_role author
author
author
dc.contributor.author.fl_str_mv Soares, Daniel Vieira
Bitencourt, Marcelo C.
Loureiro, Juliana Braga Rodrigues
Freire, Atila Pantaleão Silva
dc.subject.cnpq.fl_str_mv CNPQ::CIENCIAS EXATAS E DA TERRA::FISICA::AREAS CLASSICAS DE FENOMENOLOGIA E SUAS APLICACOES::DINAMICA DOS FLUIDOS
topic CNPQ::CIENCIAS EXATAS E DA TERRA::FISICA::AREAS CLASSICAS DE FENOMENOLOGIA E SUAS APLICACOES::DINAMICA DOS FLUIDOS
Bubbly flow
Law of the wall
Pipe flow
Turbulence
dc.subject.eng.fl_str_mv Bubbly flow
Law of the wall
Pipe flow
Turbulence
description Indisponível.
publishDate 2018
dc.date.issued.fl_str_mv 2018-02-26
dc.date.accessioned.fl_str_mv 2019-06-03T13:21:02Z
dc.date.available.fl_str_mv 2023-11-30T03:03:28Z
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 http://hdl.handle.net/11422/8271
dc.identifier.issn.pt_BR.fl_str_mv 1678-2690
dc.identifier.doi.pt_BR.fl_str_mv 10.1590/0001-3765201820170101
identifier_str_mv 1678-2690
10.1590/0001-3765201820170101
url http://hdl.handle.net/11422/8271
dc.language.iso.fl_str_mv eng
language eng
dc.relation.ispartof.pt_BR.fl_str_mv Anais da Academia Brasileira de Ciências
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Academia Brasileira de Ciências
dc.publisher.country.fl_str_mv Brasil
dc.publisher.department.fl_str_mv Núcleo Interdisciplinar de Dinâmica dos Fluidos
publisher.none.fl_str_mv Academia Brasileira de Ciências
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFRJ
instname:Universidade Federal do Rio de Janeiro (UFRJ)
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instname_str Universidade Federal do Rio de Janeiro (UFRJ)
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reponame_str Repositório Institucional da UFRJ
collection Repositório Institucional da UFRJ
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http://pantheon.ufrj.br:80/bitstream/11422/8271/1/2-2018_Wall-function-treatment-min.pdf
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