Planar collapse of a granular column: Experiments and discrete element simulations

By L. Lacaze, J. Phillips, Rich R. Kerswell. 2008

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A new SPH-based approach to simulation of granular flows using viscous damping and stress regularisation (2017, methodology): “…(DEMs) have been extensively used to investigate the mechanisms of granular flows (Cleary and Sawley 2002; Staron and Hinch 2005, 2007; Zenit 2005; Lacaze et al. 2008; Krabbenhoft et al. 2012; Girolami et al. 2012; Guo and Curtis 2014; Utili et al. 2015; Kermani et al. 2015), and a comprehensive…”
Numerical modeling of 2‐D granular step collapse on erodible and nonerodible surface (2009, methodology): “Nondimensional incremental runout plotted against aspect ratio and fitting relationships as proposed by Lube et al. [2005] for coarse sand and unidirectional tests with 20 cm wide channel (2.”
Viscoplastic modeling of granular column collapse with pressure-dependent rheology (2015, methodology): “Similarly, 3D DEM (soft particle dynamics) of laterally wider dam-break granular collapse (Girolami [19]) reproduced quantitatively the dynamics and the deposit observed experimentally with a grain/grain friction coefficient µm = 0.5, a particlewall friction µw = 0.5, and an empirical additional dis”
The granular column collapse as a continuum: validity of a two-dimensional Navier–Stokes model with a μ(I)-rheology (2011, methodology): “Moreover, Lacaze et al. (2008) showed that discrete simulations reproduce very accurately experimental results in two dimensions, down to the grain size scale.”