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Stability of Monomer-Dimer Piles
Deniz Ertas, Thomas C. Halsey, Alex J. Levine +1
We measure how strong, localized contact adhesion between grains affects the maximum static critical angle, theta_c, of a dry sand pile. By mixing dimer grains, each consisting of…
Geometry of Frictionless and Frictional Sphere Packings
Leonardo E. Silbert, Deniz Ertas, Gary S. Grest +2
We study static packings of frictionless and frictional spheres in three dimensions, obtained via molecular dynamics simulations, in which we vary particle hardness, friction coeff…
Granular 'glass' transition
L. E. Silbert, D. Ertas, G. S. Grest +2
The transition from a flowing to a static state in a granular material is studied using large-scale, 3D particle simulations. Similar to glasses, this transition is manifested in t…
Granular flow down an inclined plane: Bagnold scaling and rheology
L. E. Silbert, D. Ertas, G. S. Grest +3
We have performed a systematic, large-scale simulation study of granular media in two- and three-dimensions, investigating the rheology of cohesionless granular particles in inclin…
Branched Growth with Walkers
Thomas C. Halsey
Diffusion-limited aggregation has a natural generalization to the "-models", in which random walkers must arrive at a point on the cluster surface in order for growth to occ…