A two-phase solid-fluid model for dense granular flows including dilatancy effects: comparison with submarine granular collapse experiments

Abstract : 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.
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EPJ Web of Conferences, EDP Sciences, 2017, 140, 〈10.1051/epjconf/201714009039〉
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F. Bouchut, Enrique Fernández-Nieto, El Hadji Koné, A. Mangeney, G. Narbona-Reina. A two-phase solid-fluid model for dense granular flows including dilatancy effects: comparison with submarine granular collapse experiments. EPJ Web of Conferences, EDP Sciences, 2017, 140, 〈10.1051/epjconf/201714009039〉. 〈hal-01631797〉

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