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dc.contributorSchleiss, Anton J.
dc.contributorde Cesare, Giovanni
dc.contributorFranca, Mario J.
dc.contributorPfister, Michael
dc.creatorĐorđević, Dejana
dc.date.accessioned2020-03-10T10:51:36Z
dc.date.available2020-03-10T10:51:36Z
dc.date.issued2014
dc.identifier.isbn978-1-138-02674-2
dc.identifier.isbn978-1-4987-0442-7
dc.identifier.urihttp://grafar.grf.bg.ac.rs/handle/123456789/1858
dc.description.abstractA role of the difference in bed elevations in the main-river (ΔzMR) at its entrance to a 90º straight-channels' confluence is studied numerically using a 3D finite-volume model. Three characteristic hydrological scenarios with DR = {0.250, 0.583, 0.750} are analysed in four confluence layouts having ΔzMR / hd [0.0, 0.50] (where hd stands for the flow depth in the deeper canal at the confluence). It is found that: 1) a portion of the tribu-tary flow in the bottom layers is entrained by the bed-step, 2) the w- velocity has the same order of magnitude as Vxy for ΔzMR ≥ 0.25hd and DR > 0.5, 3) the opposite bank is endangered by erosion due to strong upward motion along this bank, 4) additional shear layer develops on the outer side of the distorted umax-core and 5) the presence of bed-step favours bed-load transport both in and far downstream of the confluence.en
dc.language.isoensr
dc.publisherCRC Press, Taylor & Francis Groupsr
dc.relationinfo:eu-repo/grantAgreement/MESTD/Technological Development (TD or TR)/37009/RS//sr
dc.relationinfo:eu-repo/grantAgreement/MESTD/Technological Development (TD or TR)/37010/RS//sr
dc.rightsopenAccesssr
dc.sourceRiver Flow 2014, Proceedings of the International Conference on Fluvial Hydraulics, Lausanne, Switzerland, 3-5 September 2014sr
dc.subjectriver confluencesr
dc.subjectbed elevation discordance in the main riversr
dc.subjectflow angles δ and φsr
dc.subjectsize of the recirculation zonesr
dc.subjectshear layersr
dc.subjectbed shear stress distributionsr
dc.titleEffect of bed elevation discordance in the main river on the confluence hydrodynamics in 90o straight-channels’ confluencesen
dc.typeconferenceObjectsr
dc.rights.licenseARRsr
dc.rights.holderTaylor & Francis Groupsr
dc.citation.epage1005
dc.citation.spage997
dc.identifier.doi10.1201/b17133
dc.identifier.fulltexthttp://grafar.grf.bg.ac.rs/bitstream/id/7128/FrontCover&TOC-River-Flow-2014.pdf
dc.identifier.fulltexthttp://grafar.grf.bg.ac.rs/bitstream/id/7129/River-Flow-2014-Paper124.pdf
dc.type.versionpublishedVersionsr


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