000130468 001__ 130468
000130468 005__ 20240125162930.0
000130468 0247_ $$2doi$$a10.1016/j.cageo.2014.09.009
000130468 0248_ $$2sideral$$a88283
000130468 037__ $$aART-2014-88283
000130468 041__ $$aeng
000130468 100__ $$aCaviedes-Voullième,D.
000130468 245__ $$a2D dry granular free-surface flow over complex topography with obstacles. Part I: Experimental study using a consumer-grade RGB-D sensor
000130468 260__ $$c2014
000130468 5203_ $$aAvalanches, debris flows and other types of gravity-driven granular flows are a common hazard in mountainous regions. These regions often have human settlements in the lower parts of valleys, with human structures dangerously exposed to the destructive effects of these geophysical flows. Therefore a scientific effort has been made to understand, model and simulate geophysical granular flows. In order for computer models and simulations to be of predictive value they need to be validated under controlled, yet nature-like conditions. This work presents an experimental study of granular flow over a simplified mountain slope and valley topography. The experimental facility has a rough bed with very high slope at the upstream end and adverse slope on the downstream end, following a parabolic profile. Obstacles are present in the lower regions. Transient measurements of the moving granular surfaces were taken with a consumer-grade RGB-D sensor, providing transient 2D elevation fields around the obstacles. Three experimental configurations were tested, with semispheres of different diameters and a square dike obstacle. The experimental results are very consistent and repeatable. The quantitative, transient and two-dimensional data for all three experiments constitute excellent benchmarking tests for computational models, such as the one presented in a companion paper.
000130468 540__ $$9info:eu-repo/semantics/openAccess$$aAll rights reserved$$uhttp://www.europeana.eu/rights/rr-f/
000130468 590__ $$a2.054$$b2014
000130468 591__ $$aCOMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS$$b25 / 102 = 0.245$$c2014$$dQ1$$eT1
000130468 591__ $$aGEOSCIENCES, MULTIDISCIPLINARY$$b64 / 175 = 0.366$$c2014$$dQ2$$eT2
000130468 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000130468 700__ $$0(orcid)0000-0002-2985-1023$$aJuez,C.$$uUniversidad de Zaragoza
000130468 700__ $$0(orcid)0000-0002-1386-5543$$aMurillo,J.$$uUniversidad de Zaragoza
000130468 700__ $$0(orcid)0000-0001-8674-1042$$aGarcía-Navarro,P.$$uUniversidad de Zaragoza
000130468 7102_ $$15001$$2600$$aUniversidad de Zaragoza$$bDpto. Ciencia Tecnol.Mater.Fl.$$cÁrea Mecánica de Fluidos
000130468 773__ $$g73 (2014), 177-197$$pComput. geosci.$$tCOMPUTERS & GEOSCIENCES$$x0098-3004
000130468 8564_ $$s5981981$$uhttps://zaguan.unizar.es/record/130468/files/texto_completo.pdf$$yVersión publicada
000130468 8564_ $$s2964318$$uhttps://zaguan.unizar.es/record/130468/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000130468 909CO $$ooai:zaguan.unizar.es:130468$$particulos$$pdriver
000130468 951__ $$a2024-01-25-15:13:05
000130468 980__ $$aARTICLE