000086508 001__ 86508
000086508 005__ 20210930085402.0
000086508 0247_ $$2doi$$a10.1007/s10652-018-09658-6
000086508 0248_ $$2sideral$$a110427
000086508 037__ $$aART-2019-110427
000086508 041__ $$aeng
000086508 100__ $$0(orcid)0000-0001-8221-523X$$aEcheverribar, I.$$uUniversidad de Zaragoza
000086508 245__ $$aUse of internal boundary conditions for levees representation: application to river flood management
000086508 260__ $$c2019
000086508 5060_ $$aAccess copy available to the general public$$fUnrestricted
000086508 5203_ $$aRiver floods can be simulated with the 2D shallow water system of equations using finite volume methods, where the terrain is discretized in cells that form the computational mesh. Usually a proper treatment of wet/dry fronts is required. River levees can be modelled as part of the topography by means of sufficiently small cells of higher elevation than the rest of the bed level in locally refined meshes. This procedure is associated with a large computational time since the time step depends directly on the cell size. The alternative proposed in this work includes the levees as internal boundary conditions in the 2D numerical scheme. In particular, levees have been defined by a weir law that, depending on the relative values of water surface levels on both sides, can formulate the discharge for different situations (i.e. free flow and submerged flow). In addition, having identified numerical difficulties in cases of low discharge under free flow conditions, a novel procedure to avoid oscillations has been developed and called volume transport method. The validation and comparison between methods has been carried out with benchmark test cases and, in addition, with a real flood event in the Ebro River (Spain).
000086508 536__ $$9info:eu-repo/grantAgreement/ES/DGA/FSE$$9info:eu-repo/grantAgreement/ES/MINECO/CGL2015-66114-R$$9info:eu-repo/grantAgreement/ES/MINECO/DI-14-06987
000086508 540__ $$9info:eu-repo/semantics/openAccess$$aAll rights reserved$$uhttp://www.europeana.eu/rights/rr-f/
000086508 590__ $$a1.512$$b2019
000086508 591__ $$aOCEANOGRAPHY$$b38 / 66 = 0.576$$c2019$$dQ3$$eT2
000086508 591__ $$aMECHANICS$$b94 / 136 = 0.691$$c2019$$dQ3$$eT3
000086508 591__ $$aWATER RESOURCES$$b65 / 94 = 0.691$$c2019$$dQ3$$eT3
000086508 591__ $$aENVIRONMENTAL SCIENCES$$b204 / 265 = 0.77$$c2019$$dQ4$$eT3
000086508 591__ $$aMETEOROLOGY & ATMOSPHERIC SCIENCES$$b73 / 93 = 0.785$$c2019$$dQ4$$eT3
000086508 592__ $$a0.522$$b2019
000086508 593__ $$aWater Science and Technology$$c2019$$dQ2
000086508 593__ $$aEnvironmental Chemistry$$c2019$$dQ3
000086508 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion
000086508 700__ $$0(orcid)0000-0001-6961-7250$$aMorales-Hernández, M.$$uUniversidad de Zaragoza
000086508 700__ $$0(orcid)0000-0002-0415-0001$$aBrufau, P.$$uUniversidad de Zaragoza
000086508 700__ $$0(orcid)0000-0001-8674-1042$$aGarcía-Navarro, P.$$uUniversidad de Zaragoza
000086508 7102_ $$15001$$2600$$aUniversidad de Zaragoza$$bDpto. Ciencia Tecnol.Mater.Fl.$$cÁrea Mecánica de Fluidos
000086508 773__ $$g19 (2019), 1253 - 1271$$pEnviron. Fluid Mech.$$tEnvironmental Fluid Mechanics$$x1567-7419
000086508 8564_ $$s1555598$$uhttps://zaguan.unizar.es/record/86508/files/texto_completo.pdf$$yPostprint
000086508 8564_ $$s23497$$uhttps://zaguan.unizar.es/record/86508/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint
000086508 909CO $$ooai:zaguan.unizar.es:86508$$particulos$$pdriver
000086508 951__ $$a2021-09-30-08:26:22
000086508 980__ $$aARTICLE