A two-phase solid-fluid model for dense granular flows including dilatancy effects: comparison with submarine granular collapse experiments
1 Université Paris-Est, Laboratoire d’Analyse et de Mathématiques Appliquées (UMR 8050), CNRS, UPEM, UPEC, F-77454, Marne-la-Vallée, France
2 Universidad de Sevilla, Dpto. Matemática Aplicada I & IMUS, Universidad de Sevilla. E.T.S. Arquitectura, 41012 Sevilla, Spain
3 Université Paris Diderot, Sorbone Paris Cité, Institut de Physique du Globe de Paris, 75005 Paris, France
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Published online: 30 June 2017
We simulate here the collapse of granular columns immersed in a viscous fluid based on a simplified version of the model developed by . The simulation quite well reproduces the dynamics and deposit of the granular mass as well as the excess pore fluid pressure measured in the laboratory experiments of  owing that dilatancy effects and pore pressure feedback are accounted for. In particular, the difference in the behaviour of initially loose and dense columns is reproduced numerically.
© The Authors, published by EDP Sciences, 2017
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