English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/100618
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:

Transient two-dimensional simulation of real flood events in a mediterranean floodplain

AutorGonzález-Sanchis, María ; Murillo, J.; Latorre Garcés, Borja ; Comín, Francisco A. ; García-Navarro, P.
Palabras claveHydraulic bed reconstruction
Shallow water
Finite volume
Unsteady flow
Overland flow
Flood plains
Shallow water
Mediterranean Sea
Unsteady surface flow
Fecha de publicación2012
EditorAmerican Society of Civil Engineers
CitaciónJournal of Hydraulic Engineering 138(7): 629- 641 (2012)
ResumenThe application of a two-dimensional (2D) finite volume numerical model to real flood events in the Ebro River is presented. The hydraulic model used is based on the 2D transient shallow-water equations on the irregular bed that are able to compute flow advance over a dry bed. This study involves the reliable simulation of not only the flood wave advance but also the drying process in a series of events of different magnitude. The importance of the correct characterization of the roughness coefficient and the topography is emphasized in the study. The former is estimated from a previous classification of structurally homogeneous habitats, and the latter is defined by merging the digital terrain model data with a hydraulic river bed elevation reconstruction algorithm. The calibration of the full model resulting from the roughness, bed river, and flow simulation models is based on field measurements of the flooded area for two steady discharges. The validation is performed by comparing the numerical results with the water levels measured during five flood events at certain times, with the flooded area and time series of continuous point measurements of water depth during different situations throughout the year. Because the model provides correct predictions of the surface processes both for low and high flow discharges, the simulation results are used to analyze the present floodplain hydrodynamics. In the same way, different topographic scenarios, on the basis of changes in the hydraulic riverfloodplain connectivity, are generated to analyze their potentially beneficial effect in the floodplain geomorphic dynamics. © 2012 American Society of Civil Engineers.
Versión del editorhttp://dx.doi.org/10.1061/(ASCE)HY.1943-7900.0000565
Identificadoresdoi: 10.1061/(ASCE)HY.1943-7900.0000565
issn: 0733-9429
Aparece en las colecciones: (LIFTEC) Artículos
(IPE) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
accesoRestringido.pdf15,38 kBAdobe PDFVista previa
Mostrar el registro completo

Artículos relacionados:

NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.