Please use this identifier to cite or link to this item: http://repositorio.lnec.pt:8080/jspui/handle/123456789/1005369
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dc.contributor.authorProust, S.pt_BR
dc.contributor.authorFernandes, J. N.pt_BR
dc.contributor.authorPeltier, Y.pt_BR
dc.contributor.authorLeal, J. B.pt_BR
dc.contributor.authorRiviere, N.pt_BR
dc.contributor.authorCardoso, A. H.pt_BR
dc.date.accessioned2013-11-03T19:00:10Zpt_BR
dc.date.accessioned2014-10-10T16:15:50Zpt_BR
dc.date.accessioned2017-04-13T11:28:06Z-
dc.date.available2013-11-03T19:00:10Zpt_BR
dc.date.available2014-10-10T16:15:50Zpt_BR
dc.date.available2017-04-13T11:28:06Z-
dc.date.issued2013-10pt_BR
dc.identifier.urihttps://repositorio.lnec.pt/jspui/handle/123456789/1005369-
dc.description.abstractThe reported experimental study assesses the effects of flow non-uniformity on the momentum flux in straight compound channels. Two flumes were used, featuring vertical and sloping banks. Starting with uniform flow condition, various imbalances in the upstream discharge distribution were introduced. This resulted in a time-averaged lateral flow and advective transport of momentum, which interacted with the shear-layer turbulence generated by the compound geometry. To investigate this interaction, the three contributions to transverse momentum flux (depth-averaged flow, shear-layer turbulence and dispersive term of spanwise velocity) are assessed. The first two contributions were strengthened by the sloping banks, while the third becomes important for the case of the vertical bank. With a lateral flow towards the main channel, the first contribution rises at the expense of the second. With a lateral flow towards the floodplain, the first two contributions have the same order of magnitude, and the Boussinesq approach is invalidated.pt_BR
dc.publisherIAHR - International Association for Hydro-Environment Engineering and Researchpt_BR
dc.rightsopenAccesspt_BR
dc.subjectCompound open-channel flowpt_BR
dc.subjectLaboratory studiespt_BR
dc.subjectNon-uniform flowpt_BR
dc.subjectTransverse momentum fluxpt_BR
dc.subjectTurbulent mixing layerspt_BR
dc.titleTurbulent non-uniform flows in straight compound open-channelspt_BR
dc.typearticlept_BR
dc.description.pages12pppt_BR
dc.description.commentsDOI: 10.1080/00221686.2013.818586pt_BR
dc.description.sectorDHA/NREpt_BR
dc.description.magazineJournal oh Hidraulic Researchpt_BR
Appears in Collections:DHA/NRE - Comunicações a congressos e artigos de revista

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