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Role of bed elevation discordance at 90? straight-channel confluences
dc.creator | Đorđević, Dejana | |
dc.date.accessioned | 2019-04-19T14:18:32Z | |
dc.date.available | 2019-04-19T14:18:32Z | |
dc.date.issued | 2012 | |
dc.identifier.uri | https://grafar.grf.bg.ac.rs/handle/123456789/449 | |
dc.description.abstract | This paper aims at studying the role of difference in bed elevations between the tributary and main canals (z T) in 90 confluence under different hydrologic/hydraulic conditions. To do this, 3D finitevolume model is used. Four z T / hd values in the range [0.0, 0.5] (where hd stands for the flow depth in the main canal at the confluence) and three values of the discharge ratio DR =QMR/Qtot ={0.250, 0.583, 0.750} are considered. It is found that the: 1) increase in z T attenuates 3D flow at the confluence and enhances 3D flow in the post-confluence canal, 2) enhanced 3D flow affects the existence, size and position of the recirculation zone (RZ), 3) size of the RZ reduces as z T increases, 4) maximal shear is attained in the upper layers when z T >0 and 5) zone of τ0, max reduces and moves to the downstream junction corner as z T increases. | en |
dc.rights | restrictedAccess | |
dc.source | River Flow 2012 - Proceedings of the International Conference on Fluvial Hydraulics | |
dc.title | Role of bed elevation discordance at 90? straight-channel confluences | en |
dc.type | conferenceObject | |
dc.rights.license | ARR | |
dc.citation.epage | 1160 | |
dc.citation.other | 2: 1153-1160 | |
dc.citation.spage | 1153 | |
dc.citation.volume | 2 | |
dc.identifier.rcub | https://hdl.handle.net/21.15107/rcub_grafar_449 | |
dc.identifier.scopus | 2-s2.0-84867959223 | |
dc.type.version | publishedVersion |
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