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FLUVIAL PROCESSES AND MORPHOLOGY IN RIVER CHANNEL CONFLUENCES: A REVIEW
(Uniao Geomorfologia Brasileira, 2017-01-01)
River channel confluences are sites with continuous changes in the flow structure and sediment transport. A network point of view confluences operate complex interactions between material and energy, provided by the ...
Morphology, flow structure, and suspended bed sediment transport at two large braid-bar confluences
(American Geophysical Union, 2009-05)
Mid-channel bars and their associated confluences are key morphodynamic nodes within braided rivers, with past studies having investigated the morphodynamics of small natural channels or laboratory models with relatively ...
Fine Sediment Input and Benthic Fauna Interactions at the Confluence of Two Large Rivers
(University of Tehran, 2016-01)
Several studies suggest that invertebrate abundance and richness are disrupted and reset at confluences. Thus, junctions contribute disproportionately to the overall aquatic biodiversity of the river. In general terms, ...
Form roughness and the absence of secondary flow in a large confluence-diffluence, Rio Paraná, Argentina
(John Wiley & Sons Ltd, 2007-01)
Confluence–diffluence units are key elements within many river networks, having a major impact upon the routing of flow and sediment, and hence upon channel change. Although much progress has been made in understanding ...
Flow structure at a confluence: experimental data and the bluff body analogy
(Taylor & Francis, 2016-05)
An experimental characterization of the hydrodynamics of a mixing interface at an open channel confluence is presented. In the laboratory experiments, both a confluence and a cylinder set-up were studied in order to validate ...
Obtuse-angle vs. confluent sharp meander bends: insights from the Paraguay-Cuiabá confluence in the tropical Pantanal wetlands, Brazil
(Elsevier Science, 2020-01)
River confluences are notable features in the drainage system with complex hydrodynamics, bed morphology, sediment transport, and mixing processes. Junction planform plays a pivotal role in the confluence hydrodynamics. ...
The dissolved chemical and isotopic signature downflow the confluence of two large rivers: The case of the Parana and Paraguay rivers
(Elsevier Science, 2015-09)
The Paraná River basin is one of the largest hydrological systems in South America (aprox. 2.6 x 106 Km2). Downflow the confluence of tributaries, most large rivers exhibit transverse and Longitudinal inhomogeneities that ...
Flow pattern at a river diffluence at the alluvial system of the Paraná River
(Taylor & Francis, 2014-12)
This communication presents field and numerical data depicting the flow pattern formed at a diffluence of the Colastiné River, Argentina, where one branch accesses the local harbour. The harbour has been in decline since ...
The influence of tributary flow density differences on the hydrodynamic behavior of a confluent meander bend and implications for flow mixing
(Elsevier Science, 2018-01)
The goal of this study is to evaluate the influence of tributary flow density differences on hydrodynamics and mixing at a confluent meander bend. A detailed field characterization is performed using an Acoustic Doppler ...
Simulação numérica de confluências utilizando a técnica de canais paralelosNumerical simulation of confluences using the technique of parallel channels
(Universidade Federal de UberlândiaBrasilPrograma de Pós-graduação em Engenharia Civil, 2017)