Show simple item record

dc.contributorLucas, Calvo
dc.creatorĐorđević, Dejana
dc.creatorĐurović, Nemanja
dc.creatorĐurić, Petar
dc.creatorStanić, Filip
dc.creatorMilinković, Nikola
dc.date.accessioned2020-02-24T08:28:44Z
dc.date.available2020-02-24T08:28:44Z
dc.date.issued2019
dc.identifier.issn2521-716X
dc.identifier.issn2521-7119
dc.identifier.issn2521-7127
dc.identifier.urihttp://grafar.grf.bg.ac.rs/handle/123456789/1853
dc.description.abstractThe independent subsections model (ISM) was developed for the steady uniform and non-uniform flow computations in compound channels with constant and variable channel widths. It was thoroughly tested against experimental data in different compound channel layouts. Since the existing set of equations is derived for the simple compound channel geometry, this paper aims at: 1) extending the model to arbitrary geometries, 2) adding the term that accounts for the influence of emergent rigid floodplain vegetation into momentum equations and 3) at validating the method against available floods data from one river gauging station. Comparison with the recorded data has shown that the optimal value for the model parameter ψt = 0.10 is greater than that obtained for the canal with smooth floodplains. Partial head losses due to vegetation are two orders of magnitude greater than the friction loss for H* > 0.25 when they are calculated with the formula for the volume drag force caused by an array of emergent rigid vegetation, proposed by Nepf,. The head loss due to a drag grows faster with the increase in floodplain submergence ratio on the floodplain with the constrained width. In the presence of vegetation on the floodplains, the head loss caused by mass exchange due to non-prismaticity of the compound channel does not depend on the floodplain width. This component of the head loss is balanced with the sum of head losses due to turbulence diffusion and vegetation drag.en
dc.language.isoensr
dc.publisherPª Bajo Virgen del Puerto, 3 28005 Madrid, Spain: International Association for Hydro-Environment Engineering and Research -IAHR-sr
dc.relationinfo:eu-repo/grantAgreement/MESTD/Technological Development (TD or TR)/37009/RS//sr
dc.relationМерење и моделирање физичких, хемијских, биолошких и морфодинамичких параметара река и водних акумулацијаsr
dc.relationMonitoring and Modeling of Rivers and Reservoirs (MORE) - Physical, Chemical, Biological and Morphodynamic Parameterssr
dc.rightsopenAccesssr
dc.sourceE-proceedings of the 38th IAHR World Congress September 1-6, 2019, Panama City, Panamasr
dc.subjectNon-prismatic compound channelsr
dc.subjectenergy losssr
dc.subjectvolume drag force exerted by rigid-stem vegetationsr
dc.titleApplication of the independent subsections method for the estimation of the rating curve in the compound channel – a case studyen
dc.typeconferenceObjectsr
dc.rights.licenseARRsr
dc.rights.holderIAHR, 2019sr
dc.description.otherErratum: The right hand side of equation 10 on page 3737 should read Psi^t (Ui - Uj)^2en
dc.identifier.doi10.3850/38WC092019-1234
dc.identifier.fulltexthttp://grafar.grf.bg.ac.rs/bitstream/id/7099/437-ISM.pdf
dc.type.versionpublishedVersionsr


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record