Note on a Parametric Relation for Separating Flow over a Rough Hill

Detalhes bibliográficos
Autor(a) principal: Loureiro, Juliana Braga Rodrigues
Data de Publicação: 2009
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/11422/8783
Resumo: Indisponível.
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spelling Loureiro, Juliana Braga RodriguesFreire, Atila Pantaleão Silva2019-07-12T16:59:10Z2023-11-30T03:03:36Z2009-02-091573-1472http://hdl.handle.net/11422/878310.1007/s10546-009-9362-xIndisponível.A parametrization method used to account for the effects of flow separation and wall roughness on the lower boundary condition for turbulent boundary layers is investigated against direct numerical simulation and laser Doppler anemometry data. The numerical simulation represents flow over a smooth, flat surface with a prescribed external adverse pressure gradient. The water-channel experiments cover flow over smooth and rough hills for two specified Reynolds numbers. Global optimization algorithms based on four different direct search methods are used to assess the parametrization function, C, in terms of local mean velocity profiles and the parametrization parameters u * (friction velocity), ∂ x p (local pressure gradient), z 0 (effective roughness) and d (zero-plane displacement). The study investigates regions of attached and reversed flows, and forty-two velocity profiles are compared with the proposed expression for the function C, including two profiles that satisfy the solution of Stratford.Submitted by Jairo Amaro (jairo.amaro@sibi.ufrj.br) on 2019-07-12T16:59:09Z No. of bitstreams: 1 2009_FREIRE_BLM131-min.pdf: 387880 bytes, checksum: 7d927e92f59c8d7fe03f420152f71190 (MD5)Made available in DSpace on 2019-07-12T16:59:10Z (GMT). No. of bitstreams: 1 2009_FREIRE_BLM131-min.pdf: 387880 bytes, checksum: 7d927e92f59c8d7fe03f420152f71190 (MD5) Previous issue date: 2009-02-09engSpringerBrasilNúcleo Interdisciplinar de Dinâmica dos FluidosBoundary-Layer MeteorologyCNPQ::CIENCIAS EXATAS E DA TERRA::FISICA::AREAS CLASSICAS DE FENOMENOLOGIA E SUAS APLICACOES::DINAMICA DOS FLUIDOSHill flowLower boundary conditionRoughnessSeparationNote on a Parametric Relation for Separating Flow over a Rough Hillinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article1312309318365 diasinfo: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/11422/8783/2/license.txtdd32849f2bfb22da963c3aac6e26e255MD52ORIGINAL2009_FREIRE_BLM131-min.pdf2009_FREIRE_BLM131-min.pdfapplication/pdf387880http://pantheon.ufrj.br:80/bitstream/11422/8783/1/2009_FREIRE_BLM131-min.pdf7d927e92f59c8d7fe03f420152f71190MD5111422/87832023-11-30 00:03:36.292oai:pantheon.ufrj.br:11422/8783TElDRU7Dh0EgTsODTy1FWENMVVNJVkEgREUgRElTVFJJQlVJw4fDg08KCkFvIGFzc2luYXIgZSBlbnRyZWdhciBlc3RhIGxpY2Vuw6dhLCB2b2PDqihzKSBvKHMpIGF1dG9yKGVzKSBvdSBwcm9wcmlldMOhcmlvKHMpIGRvcyBkaXJlaXRvcyBhdXRvcmFpcyBjb25jZWRlKG0pIGFvIFJlcG9zaXTDs3JpbyBQYW50aGVvbiBkYSBVbml2ZXJzaWRhZGUgRmVkZXJhbCBkbyBSaW8gZGUgSmFuZWlybyAoVUZSSikgbyBkaXJlaXRvIG7Do28gLSBleGNsdXNpdm8gZGUgcmVwcm9kdXppciwgY29udmVydGVyIChjb21vIGRlZmluaWRvIGFiYWl4byksIGUvb3UgZGlzdHJpYnVpciBvIGRvY3VtZW50byBlbnRyZWd1ZSAoaW5jbHVpbmRvIG8gcmVzdW1vKSBlbSB0b2RvIG8gbXVuZG8sIGVtIGZvcm1hdG8gZWxldHLDtG5pY28gZSBlbSBxdWFscXVlciBtZWlvLCBpbmNsdWluZG8sIG1hcyBuw6NvIGxpbWl0YWRvIGEgw6F1ZGlvIGUvb3UgdsOtZGVvLgoKVm9jw6ogY29uY29yZGEgcXVlIGEgVUZSSiBwb2RlLCBzZW0gYWx0ZXJhciBvIGNvbnRlw7pkbywgdHJhZHV6aXIgYSBhcHJlc2VudGHDp8OjbyBkZSBxdWFscXVlciBtZWlvIG91IGZvcm1hdG8gY29tIGEgZmluYWxpZGFkZSBkZSBwcmVzZXJ2YcOnw6NvLgoKVm9jw6ogdGFtYsOpbSBjb25jb3JkYSBxdWUgYSBVRlJKIHBvZGUgbWFudGVyIG1haXMgZGUgdW1hIGPDs3BpYSBkZXNzYSBzdWJtaXNzw6NvIHBhcmEgZmlucyBkZSBzZWd1cmFuw6dhLCBiYWNrLXVwIGUgcHJlc2VydmHDp8OjbyBkaWdpdGFsLgoKRGVjbGFyYSBxdWUgbyBkb2N1bWVudG8gZW50cmVndWUgw6kgc2V1IHRyYWJhbGhvIG9yaWdpbmFsLCBlIHF1ZSB2b2PDqiB0ZW0gbyBkaXJlaXRvIGRlIGNvbmNlZGVyIG9zIGRpcmVpdG9zIGNvbnRpZG9zIG5lc3RhIGxpY2Vuw6dhLiBWb2PDqiB0YW1iw6ltIGRlY2xhcmEgcXVlIGEgc3VhIGFwcmVzZW50YcOnw6NvLCBjb20gbyBtZWxob3IgZGUgc2V1cyBjb25oZWNpbWVudG9zLCBuw6NvIGluZnJpbmdpIGRpcmVpdG9zIGF1dG9yYWlzIGRlIHRlcmNlaXJvcy4KClNlIG8gZG9jdW1lbnRvIGVudHJlZ3VlIGNvbnTDqW0gbWF0ZXJpYWwgZG8gcXVhbCB2b2PDqiBuw6NvIHRlbSBkaXJlaXRvcyBkZSBhdXRvciwgZGVjbGFyYSBxdWUgb2J0ZXZlIGEgcGVybWlzc8OjbyBpcnJlc3RyaXRhIGRvIGRldGVudG9yIGRvcyBkaXJlaXRvcyBhdXRvcmFpcyBlIGNvbmNlZGUgYSBVRlJKIG9zIGRpcmVpdG9zIHJlcXVlcmlkb3MgcG9yIGVzdGEgbGljZW7Dp2EsIGUgcXVlIGVzc2UgbWF0ZXJpYWwgZGUgcHJvcHJpZWRhZGUgZGUgdGVyY2Vpcm9zIGVzdMOhIGNsYXJhbWVudGUgaWRlbnRpZmljYWRvIGUgcmVjb25oZWNpZG8gbm8gdGV4dG8gb3UgY29udGXDumRvIGRhIHN1Ym1pc3PDo28uCgpTZSBvIGRvY3VtZW50byBlbnRyZWd1ZSDDqSBiYXNlYWRvIGVtIHRyYWJhbGhvIHF1ZSBmb2ksIG91IHRlbSBzaWRvIHBhdHJvY2luYWRvIG91IGFwb2lhZG8gcG9yIHVtYSBhZ8OqbmNpYSBvdSBvdXRybyhzKSBvcmdhbmlzbW8ocykgcXVlIG7Do28gYSBVRlJKLCB2b2PDqiBkZWNsYXJhIHF1ZSBjdW1wcml1IHF1YWxxdWVyIGRpcmVpdG8gZGUgUkVWSVPDg08gb3UgZGUgb3V0cmFzIG9icmlnYcOnw7VlcyByZXF1ZXJpZGFzIHBvciBjb250cmF0byBvdSBhY29yZG8uCgpBIFVGUkogaXLDoSBpZGVudGlmaWNhciBjbGFyYW1lbnRlIG8ocykgc2V1KHMpIG5vbWUocykgY29tbyBhdXRvcihlcykgb3UgcHJvcHJpZXTDoXJpbyhzKSBkYSBzdWJtaXNzw6NvLCBlIG7Do28gZmFyw6EgcXVhbHF1ZXIgYWx0ZXJhw6fDo28sIHBhcmEgYWzDqW0gZGFzIHBlcm1pdGlkYXMgcG9yIGVzdGEgbGljZW7Dp2EsIG5vIGF0byBkZSBzdWJtaXNzw6NvLgo=Repositório de PublicaçõesPUBhttp://www.pantheon.ufrj.br/oai/requestopendoar:2023-11-30T03:03:36Repositório Institucional da UFRJ - Universidade Federal do Rio de Janeiro (UFRJ)false
dc.title.en.fl_str_mv Note on a Parametric Relation for Separating Flow over a Rough Hill
title Note on a Parametric Relation for Separating Flow over a Rough Hill
spellingShingle Note on a Parametric Relation for Separating Flow over a Rough Hill
Loureiro, Juliana Braga Rodrigues
CNPQ::CIENCIAS EXATAS E DA TERRA::FISICA::AREAS CLASSICAS DE FENOMENOLOGIA E SUAS APLICACOES::DINAMICA DOS FLUIDOS
Hill flow
Lower boundary condition
Roughness
Separation
title_short Note on a Parametric Relation for Separating Flow over a Rough Hill
title_full Note on a Parametric Relation for Separating Flow over a Rough Hill
title_fullStr Note on a Parametric Relation for Separating Flow over a Rough Hill
title_full_unstemmed Note on a Parametric Relation for Separating Flow over a Rough Hill
title_sort Note on a Parametric Relation for Separating Flow over a Rough Hill
author Loureiro, Juliana Braga Rodrigues
author_facet Loureiro, Juliana Braga Rodrigues
Freire, Atila Pantaleão Silva
author_role author
author2 Freire, Atila Pantaleão Silva
author2_role author
dc.contributor.author.fl_str_mv 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
Hill flow
Lower boundary condition
Roughness
Separation
dc.subject.eng.fl_str_mv Hill flow
Lower boundary condition
Roughness
Separation
description Indisponível.
publishDate 2009
dc.date.issued.fl_str_mv 2009-02-09
dc.date.accessioned.fl_str_mv 2019-07-12T16:59:10Z
dc.date.available.fl_str_mv 2023-11-30T03:03:36Z
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/11422/8783
dc.identifier.issn.pt_BR.fl_str_mv 1573-1472
dc.identifier.doi.pt_BR.fl_str_mv 10.1007/s10546-009-9362-x
identifier_str_mv 1573-1472
10.1007/s10546-009-9362-x
url http://hdl.handle.net/11422/8783
dc.language.iso.fl_str_mv eng
language eng
dc.relation.ispartof.en.fl_str_mv Boundary-Layer Meteorology
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Springer
dc.publisher.country.fl_str_mv Brasil
dc.publisher.department.fl_str_mv Núcleo Interdisciplinar de Dinâmica dos Fluidos
publisher.none.fl_str_mv Springer
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFRJ
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