000130475 001__ 130475
000130475 005__ 20240125162930.0
000130475 0247_ $$2doi$$a10.1016/j.advwatres.2014.05.014
000130475 0248_ $$2sideral$$a87102
000130475 037__ $$aART-2014-87102
000130475 041__ $$aeng
000130475 100__ $$0(orcid)0000-0002-2985-1023$$aJuez, C.$$uUniversidad de Zaragoza
000130475 245__ $$aA 2D weakly-coupled and efficient numerical model for transient shallow flow and movable bed
000130475 260__ $$c2014
000130475 5060_ $$aAccess copy available to the general public$$fUnrestricted
000130475 5203_ $$aRecent advances in free surface flows over mobile bed have shown that accurate and stable results in realistic problems can be provided if an appropriate coupling between the shallow water equations (SWE) and the Exner equation is performed. This coupling can be done if using a suitable Jacobian matrix. As a result, faithful numerical predictions are available for a wide range of flow conditions and empirical bed load discharge formulations, allowing to investigate the best option in each case study, which is mandatory in these type of environmental problems. When coupling the equations, the SWE are considered but including an extra conservation law for the sediment dynamics. In this way the computational cost may become unfordable in situations where the application of the SWE over rigid bed can be used involving large time and space scales without giving up to the adequate level of mesh refinement. Therefore, for restoring the numerical efficiency, the coupling technique is simplified, not decreasing the number of waves involved in the Riemann Problem but simplifying their definitions. The effects of the approximations made are tested against experimental data which include transient problems over erodible bed. The simplified model is formulated under a general framework able to insert any desirable discharge solid load formula.
000130475 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
000130475 590__ $$a3.417$$b2014
000130475 591__ $$aWATER RESOURCES$$b5 / 83 = 0.06$$c2014$$dQ1$$eT1
000130475 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion
000130475 700__ $$0(orcid)0000-0002-1386-5543$$aMurillo, J.$$uUniversidad de Zaragoza
000130475 700__ $$0(orcid)0000-0001-8674-1042$$aGarcía-Navarro, P.$$uUniversidad de Zaragoza
000130475 7102_ $$15001$$2600$$aUniversidad de Zaragoza$$bDpto. Ciencia Tecnol.Mater.Fl.$$cÁrea Mecánica de Fluidos
000130475 773__ $$g71 (2014), 93-109$$pAdv. water resour.$$tAdvances in Water Resources$$x0309-1708
000130475 8564_ $$s1674169$$uhttps://zaguan.unizar.es/record/130475/files/texto_completo.pdf$$yPostprint
000130475 8564_ $$s1475490$$uhttps://zaguan.unizar.es/record/130475/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint
000130475 909CO $$ooai:zaguan.unizar.es:130475$$particulos$$pdriver
000130475 951__ $$a2024-01-25-15:13:46
000130475 980__ $$aARTICLE