In this work a numerical study of a granular collapse in a viscous fluid is presented. Using a DEM - PFV (Pore Finite Volume) coupled model, the influence of the initial solid fraction is investigated. The time evolution of the collapse and the dependency of the deposit morphology (triangular or trapezoidal) on the initial solid fraction and aspect ratio are analyzed. Furthermore, the influence of the initial state of the granular material on the time evolution of the pore pressure is studied. The numerical results are consistent with experimental observation (Rondon et. al, 2011) showing the capability of the DEM - PFV coupled model to simulate saturated granular media.

Micro-poromechanical simulation of the collapse of a granular column in a viscous fluids

Pol Antonio
;
Fabio Gabrieli;
2019

Abstract

In this work a numerical study of a granular collapse in a viscous fluid is presented. Using a DEM - PFV (Pore Finite Volume) coupled model, the influence of the initial solid fraction is investigated. The time evolution of the collapse and the dependency of the deposit morphology (triangular or trapezoidal) on the initial solid fraction and aspect ratio are analyzed. Furthermore, the influence of the initial state of the granular material on the time evolution of the pore pressure is studied. The numerical results are consistent with experimental observation (Rondon et. al, 2011) showing the capability of the DEM - PFV coupled model to simulate saturated granular media.
2019
IX IAGIG 2019 - Atti del convegno
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11577/3307086
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