000086507 001__ 86507
000086507 005__ 20210930085402.0
000086507 0247_ $$2doi$$a10.1007/s10652-018-09657-7
000086507 0248_ $$2sideral$$a110425
000086507 037__ $$aART-2019-110425
000086507 041__ $$aeng
000086507 100__ $$0(orcid)0000-0001-8674-1042$$aGarcía-Navarro, P.$$uUniversidad de Zaragoza
000086507 245__ $$aThe shallow water equations and their application to realistic cases
000086507 260__ $$c2019
000086507 5060_ $$aAccess copy available to the general public$$fUnrestricted
000086507 5203_ $$aThe numerical modelling of 2D shallow flows in complex geometries involving transient flow and movable boundaries has been a challenge for researchers in recent years. There is a wide range of physical situations of environmental interest, such as flow in open channels and rivers, tsunami and flood modelling, that can be mathematically represented by first-order non-linear systems of partial differential equations, whose derivation involves an assumption of the shallow water type. Shallow water models may include more sophisticated terms when applied to cases of not pure water floods, such as mud/debris floods, produced by landslides. Mud/debris floods are unsteady flow phenomena in which the flow changes rapidly, and the properties of the moving fluid mixture include stop and go mechanisms. The present work reports on a numerical model able to solve the 2D shallow water equations even including bed load transport over erodible bed in realistic situations involving transient flow and movable flow boundaries. The novelty is that it offers accurate and stable results in realistic problems since an appropriate discretization of the governing equations is performed. Furthermore, the present work is focused on the importance of the computational cost. Usually, the main drawback is the high computational effort required for obtaining accurate numerical solutions due to the high number of cells involved in realistic cases. However, the proposed model is able to reduce computer times by orders of magnitude making 2D applications competitive and practical for operational flood prediction. Moreover our results show that high performance code development can take advantage of general purpose and inexpensive Graphical Processing Units, allowing to run almost 100 times faster than old generation codes in some cases.
000086507 536__ $$9info:eu-repo/grantAgreement/ES/DGA/FSE$$9info:eu-repo/grantAgreement/ES/MINECO/DI-14-06987
000086507 540__ $$9info:eu-repo/semantics/openAccess$$aAll rights reserved$$uhttp://www.europeana.eu/rights/rr-f/
000086507 590__ $$a1.512$$b2019
000086507 591__ $$aOCEANOGRAPHY$$b38 / 66 = 0.576$$c2019$$dQ3$$eT2
000086507 591__ $$aMECHANICS$$b94 / 136 = 0.691$$c2019$$dQ3$$eT3
000086507 591__ $$aWATER RESOURCES$$b65 / 94 = 0.691$$c2019$$dQ3$$eT3
000086507 591__ $$aENVIRONMENTAL SCIENCES$$b204 / 265 = 0.77$$c2019$$dQ4$$eT3
000086507 591__ $$aMETEOROLOGY & ATMOSPHERIC SCIENCES$$b73 / 93 = 0.785$$c2019$$dQ4$$eT3
000086507 592__ $$a0.522$$b2019
000086507 593__ $$aWater Science and Technology$$c2019$$dQ2
000086507 593__ $$aEnvironmental Chemistry$$c2019$$dQ3
000086507 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/acceptedVersion
000086507 700__ $$0(orcid)0000-0002-1386-5543$$aMurillo, J.$$uUniversidad de Zaragoza
000086507 700__ $$0(orcid)0000-0002-3635-6223$$aFernández-Pato, J.$$uUniversidad de Zaragoza
000086507 700__ $$0(orcid)0000-0001-8221-523X$$aEcheverribar, I.$$uUniversidad de Zaragoza
000086507 700__ $$0(orcid)0000-0001-6961-7250$$aMorales-Hernández, M.$$uUniversidad de Zaragoza
000086507 7102_ $$15001$$2600$$aUniversidad de Zaragoza$$bDpto. Ciencia Tecnol.Mater.Fl.$$cÁrea Mecánica de Fluidos
000086507 773__ $$g19 (2019), 1235 - 1252$$pEnviron. Fluid Mech.$$tEnvironmental Fluid Mechanics$$x1567-7419
000086507 8564_ $$s783813$$uhttps://zaguan.unizar.es/record/86507/files/texto_completo.pdf$$yPostprint
000086507 8564_ $$s56152$$uhttps://zaguan.unizar.es/record/86507/files/texto_completo.jpg?subformat=icon$$xicon$$yPostprint
000086507 909CO $$ooai:zaguan.unizar.es:86507$$particulos$$pdriver
000086507 951__ $$a2021-09-30-08:26:05
000086507 980__ $$aARTICLE