Effect of sediment transport boundary conditions on the numerical modeling of bed morphodynamics

Alejandro Mendoza, 0000-0002-2479-9799

Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/20.500.12222/164

Registro completo de metadatos

Campo DC	Valor	Lengua/Idioma
dc.contributor.author	Alejandro Mendoza, 0000-0002-2479-9799	-
dc.contributor.other	Abad, Jorge D.	-
dc.contributor.other	Langendoen, Eddy J.	-
dc.contributor.other	Wang, Dongchen	-
dc.contributor.other	Tassi, Pablo	-
dc.contributor.other	El Kadi Abderrezzak, Kamal	-
dc.date.accessioned	2018-06-27T01:03:06Z	-
dc.date.available	2018-06-27T01:03:06Z	-
dc.date.issued	2016	-
dc.identifier.other	http://dx.doi.org/10.1061/(ASCE)HY.1943-7900.0001208	-
dc.identifier.uri	http://hdl.handle.net/20.500.12222/164	-
dc.description	Experimental sediment transport and river morphologic studies in laboratory flumes can use two sediment-supply methods: an imposed feed at the upstream end, or a recirculation of sediment from the downstream end to the upstream end. These methods generally produce similar equilibrium bed morphology, but temporal evolution can differ. The adjustment of natural rivers may be reproduced by both modes. Nevertheless, computer models of river morphodynamics typically use a sediment-feed boundary condition, which can impact the simulated evolution of transient features such as bedforms. The effect of sediment transport boundary conditions on bedform dynamics was analyzed through numerical experiments using a two-dimensional, depth-averaged sediment transport model. Two different boundary conditions were imposed at the inlet (constant sediment feed and sediment recirculated from the outlet) for two bedform scales (dunes and bars). The type of sediment transport boundary condition greatly influenced dune development. The sediment-recirculating condition produced a more dynamic bed morphology with dunes of higher amplitude. The associated zones of higher shear stress had a direct impact on the hydrodynamics and patterns of sediment transport. In the case of the bar bed morphology, the simulated bars had similar mean length and height for both sediment boundary conditions. However, the sediment-recirculating case produced a more dynamic bed, in which the dominant bar length varied over time. Finally, the simulated bed morphology with bars, agreed much better with that observed when using a calibrated sediment transport equation to match sediment discharges instead of the standard empirical sediment transport equations available in literature.	es_MX
dc.format	application/pdf	es_MX
dc.language	eng	es_MX
dc.publisher	American Society of Civil Engineers	es_MX
dc.rights	Attribution-NonCommercial-NoDerivatives 4.0 Internacional	*
dc.rights.uri	https://creativecommons.org/licenses/by/4.0/deed.es	es_MX
dc.rights.uri	Se autoriza la reproducción total o parcial de los textos aquí publicados siempre y cuando sea sin fines de lucro y se cite la fuente completa y la dirección electrónica de la publicación.	es_MX
dc.subject	CIENCIAS FÍSICO MATEMÁTICAS Y CIENCIAS DE LA TIERRA	es_MX
dc.title	Effect of sediment transport boundary conditions on the numerical modeling of bed morphodynamics	es_MX
dc.type	article	es_MX
dc.rights.license	http://creativecommons.org/licenses/by-nc-nd/4.0/	*
dc.rights.license	info:eu-repo/semantics/restrictedAccess	es_MX
dc.subject.keywords	River Morphodynamics	es_MX
dc.subject.keywords	Telemac	es_MX
dc.subject.keywords	Hydrodynamic Model	es_MX
dc.subject.keywords	River Numerical Model	es_MX
dc.type.version	info:eu-repo/semantics/publishedVersion	es_MX
dc.coverage	US	es_MX
dc.audience	researchers	es_MX
dc.identificador.materia	1	es_MX
dc.source.other	Journal of Hydraulic Engineering (4) vol.143 (2016)	es_MX
dc.source.other	ISSN: 0733-9429	es_MX
Aparece en las colecciones:	Artículos Científicos

Ficheros en este ítem:

Fichero	Descripción	Tamaño	Formato
000064.pdf	24 páginas	361.36 kB	Adobe PDF	Visualizar/Abrir
000064.xml	1 página	983.89 kB	XML	Visualizar/Abrir

Este ítem está protegido por copyright original

Visualizar la licencia

Mostrar el registro sencillo del ítem Recomiende este ítem

Este ítem está sujeto a una licencia Creative Commons Licencia Creative Commons

Repositorio Institucional UAM Lerma - XOGI Conocimiento Abierto.

XOGI, el Repositorio Institucional de UAM-Lerma; tiene como objetivo preservar, centralizar y garantizar el acceso abierto a la producción científica, académica, artística y cultural de la institución.