https://doi.org/10.1051/epjconf/201714009039
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
* e-mail: mangeney@ipgp.jussieu.fr
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 [2]. 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 [10] 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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