189 citations · 935 across the 41 of their papers we have counts for
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Influence of Rough and Smooth Walls on Macroscale Granular Segregation Patterns
Umberto D'Ortona, Nathalie Thomas, Richard M. Lueptow
Size bidisperse granular materials in a spherical tumbler segregate into two different patterns of three bands with either small particles at the equator and large particles at the…
A Parametric Study of Mixing in a Granular Flow a Bi-Axial Spherical Tumbler
Ivan C. Christov, Richard M. Lueptow, Julio M. Ottino +1
We report on a computational parameter space study of mixing protocols for a half-full bi-axial spherical granular tumbler. The quality of mixing is quantified via the intensity of…
Influence of Rough and Smooth Walls on Macroscale Flows in Tumblers
Umberto D'Ortona, Nathalie Thomas, Zafir Zaman +1
Walls in discrete element method simulations of granular flows are sometimes modeled as a closely packed monolayer of fixed particles, resulting in a rough wall rather than a geome…