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dc.contributorErpicum, Sébastien
dc.contributorDewals, Benjamin
dc.contributorArchambeau, Pierre
dc.contributorPirotton, Michel
dc.creatorĐorđević, Dejana
dc.creatorStojnić, Ivan
dc.date.accessioned2020-02-28T10:16:52Z
dc.date.available2020-02-28T10:16:52Z
dc.date.issued2018
dc.identifier.isbn978-1-138-02977-4
dc.identifier.isbn978-1-4987-8149-7
dc.identifier.urihttp://grafar.grf.bg.ac.rs/handle/123456789/1856
dc.description.abstractParameters of 1D confluence models are originally defined for concordant beds’ (CB’s) confluences. This paper aims at estimating these parameters for discordant beds’ confluences using numerical simulation results of 3D flow. A 3D finite-volume based model SSIIM2 that was successfully validated in CB’s confluences is applied in this study, too. Confluences with the low,moderate and maximal observed bed elevation discordance ratio values are analysed for three characteristic hydrological scenarios: dominance of the tributary flow, equal contributions of the combining flows and dominance of the main-river flow. It is shown that: 1) the mean flow angle δ approaches junction angle α with the increase in bed elevation discordance, especially when tributary flow dominates, 2) the value of Hager’s correction coefficient σ is not constant and 3) the contribution of the tributary flow to the 1D momentum equation is under predicted when either parameter δ or σ is used for its estimation.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.sourceSustainable hydraulics in the era of global change, Proceedings of the 4th IAHR Europe Congress (Liege, Belgium, 27-29 July 2016) , Advances in water engineering and researchsr
dc.subject1D confluence modelsr
dc.subjectdiscordant beds' confluencesr
dc.subjectmean flow angle δsr
dc.subjectHager’s correction coefficient σsr
dc.subjectestimation of parameterssr
dc.titleEstimation of 1D-confluence model parameters in right-angled discordant beds’ confluences using 3D numerical modelen
dc.typeconferenceObjectsr
dc.rights.licenseARRsr
dc.rights.holder2016 Taylor & Francis Groupsr
dc.citation.epage690
dc.citation.spage684
dc.identifier.doi10.1201/b21902
dc.identifier.fulltexthttp://grafar.grf.bg.ac.rs/bitstream/id/7116/9781315375069_preview.pdf
dc.identifier.fulltexthttp://grafar.grf.bg.ac.rs/bitstream/id/7115/IAHREurope2016ch110.pdf
dc.type.versionpublishedVersionsr


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