A 2D hydrodynamic-sedimentological model for gravel-bed rivers. Part I: Theory and validation

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dc.catalogadorgjm
dc.contributor.authorKaless, Gabriel
dc.contributor.authorLenzi, Mario A.
dc.contributor.authorMao, Luca
dc.date.accessioned2025-03-03T16:09:23Z
dc.date.available2025-03-03T16:09:23Z
dc.date.issued2013
dc.description.abstractThis paper presents a novel 2D-depth average model especially developed for gravel-bed rivers, named Lican-Leufú (Lican=pebble and Leufu=river, in Mapuche’s language, the native inhabitants of Central Patagonia, Argentina). The model consists of three components: a hydrodynamic, a sedimentological, and a morphological model. The flow of water is described by the depth-averaged Reynolds equations for unsteady, free-surface, shallow water flows. It includes the standard k-e model for turbulence closure. Sediment transport can be divided in different size classes (sand-gravel mixture) and the equilibrium approach is used for Exner’s equation. The amour layer is also included in the structure of the model and the surface grain size distribution is also allowed to evolve. The model simulates bank slides that enable channel widening. Models predictions were tested against a flume experiment where a static armour layer was developed under conditions of sediment starvations and general good agreements were found: the model predicted adequately the sediment transport, grain size of transported material, final armour grain size distribution and bed elevation.
dc.fechaingreso.objetodigital2025-03-03
dc.format.extent6 páginas
dc.fuente.origenScopus
dc.identifier.doi10.4081/jae.2013.263
dc.identifier.eissn2239-6268
dc.identifier.scopusidSCOPUS_ID:84937572197
dc.identifier.urihttps://doi.org/10.4081/jae.2013.263
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/102313
dc.information.autorucFacultad de Agronomía e Ingenieria Forestal; Mao, Luca; 0000-0001-8619-5221; 1010416
dc.issue.numeroS2
dc.language.isoen
dc.nota.accesocontenido completo
dc.pagina.final116
dc.pagina.inicio111
dc.revistaJournal of Agricultural Engineering
dc.rightsacceso abierto
dc.rights.licenseCC BY-NC 4.0 Attribution-NonCommercial 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by-nc/4.0/
dc.subject2D-depth-average model
dc.subjectArmour layer
dc.subjectBed evolution
dc.subjectBed load
dc.subjectGravel-bed rivers
dc.subjectHydrodynamic-sedimentological model
dc.subject.ddc600
dc.subject.deweyTecnologíaes_ES
dc.titleA 2D hydrodynamic-sedimentological model for gravel-bed rivers. Part I: Theory and validation
dc.typeartículo
dc.volumen44
sipa.codpersvinculados1010416
sipa.trazabilidadScopus;12-10-2021
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