130467 20240125162930.0 doi 10.1016/j.jcp.2013.08.002 sideral 82175 ART-2013-82175 eng Juez, C. Universidad de Zaragoza (orcid)0000-0002-2985-1023 2D simulation of granular flow over irregular steep slopes using global and local coordinates 2013 In this work approximate augmented Riemann solvers are formulated providing appropriate numerical schemes for mathematical models of granular flow on irregular steep slopes. Fluxes and source terms are discretized to ensure steady state configurations including correct modeling of start/stop flow conditions, both in a global and a local system of coordinates. The weak solutions presented involve the effect of bed slope in pressure distribution and frictional effects by means of the adequate gravity acceleration components. The numerical solvers proposed are first tested against 1D cases with exact solution and then their results are compared with experimental data in order to check the suitability of the mathematical models described in this work. Comparisons between results provided when using global and local system of coordinates are presented. The obtained results point out that both the global and the local system of coordinates can be used to predict faithfully the overall behavior of the phenomena considered in this work. info:eu-repo/grantAgreement/ES/MINECO/CGL2011-28590 info:eu-repo/semantics/closedAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 2.485 2013 PHYSICS, MATHEMATICAL 4 / 55 = 0.073 2013 Q1 T1 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS 16 / 101 = 0.158 2013 Q1 T1 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Murillo, J. Universidad de Zaragoza (orcid)0000-0002-1386-5543 García-Navarro, P. Universidad de Zaragoza (orcid)0000-0001-8674-1042 5001 600 Universidad de Zaragoza Dpto. Ciencia Tecnol.Mater.Fl. Área Mecánica de Fluidos 225 (2013), 166-204 J. comput. phys. Journal of Computational Physics 0021-9991 30489087 http://zaguan.unizar.es/record/130467/files/texto_completo.pdf Versión publicada 2061654 http://zaguan.unizar.es/record/130467/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:130467 articulos driver 2024-01-25-15:12:59 ARTICLE