Please use this identifier to cite or link to this item: http://hdl.handle.net/11422/8822
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dc.contributor.authorLoureiro, Juliana Braga Rodrigues-
dc.contributor.authorAlho, Alexandre Teixeira de Pinho-
dc.contributor.authorFreire, Atila Pantaleão Silva-
dc.date.accessioned2019-07-16T15:28:00Z-
dc.date.available2010-04-18-
dc.date.available2019-07-16T15:28:00Z-
dc.date.issued2009-04-18-
dc.identifier.issn0167-6105pt_BR
dc.identifier.urihttp://hdl.handle.net/11422/8822-
dc.description.abstractThe present work performs a detailed comparison between numerical computations for the flow over a two dimensional steep hill and some newly obtained laboratory data. Six turbulence models were tested: four eddy viscosity models (k– , RNG- , k–o, SST) and two second-moment models (SSG–RSM- , BSL–RSM-o). The experiments were conducted in a water channel and were specially planned such that the large separated flow region that is formed on the lee side of the hill could be well scrutinized. The experimental results include complete profiles of the mean velocity components and of the twodimensional Reynolds stress tensor and were obtained through the laser Doppler anemometry. A particular concern of this work has been to achieve a detailed experimental and numerical characterization of the near-wall flow region. As such, for most of the measuring stations, at least eight points were located in the viscous sublayer. The work also shows the distribution of wall-shear stress in detail. The o-equation-based models were observed to perform much better than the -equationbased models. The length of separated flow region, mean velocity profiles and wall-shear stress were all reasonably well predicted. The flow properties on the hill top were particularly difficult to describe. The turbulence properties in the reversed flow region were best simulated by the BSL–RSM model. r 2008 Elsevier Ltd. All rights reserved.en
dc.languageengpt_BR
dc.publisherElsevieren
dc.relation.ispartofJournal of Wind Engineering and Industrial Aerodynamicsen
dc.rightsAcesso Abertopt_BR
dc.subjectNumerical computationsen
dc.subjectFlow over hillsen
dc.subjectExperimentsen
dc.subjectSkin frictionen
dc.titleThe numerical computation of near-wall turbulent flow over a steep hillen
dc.typeArtigopt_BR
dc.identifier.doi10.1016/j.jweia.2008.01.011pt_BR
dc.description.resumoIndisponível.pt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.departmentNúcleo Interdisciplinar de Dinâmica dos Fluidospt_BR
dc.subject.cnpqCNPQ::CIENCIAS EXATAS E DA TERRA::FISICA::AREAS CLASSICAS DE FENOMENOLOGIA E SUAS APLICACOES::DINAMICA DOS FLUIDOSpt_BR
dc.citation.volume96pt_BR
dc.citation.issue5pt_BR
dc.citation.spage540pt_BR
dc.citation.epage561pt_BR
dc.embargo.terms365 diaspt_BR
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