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Granular packings with sliding, rolling and twisting friction
A. P. Santos, Dan S. Bolintineanu, Gary S. Grest +4
Intuition tells us that a rolling or spinning sphere will eventually stop due to the presence of friction and other dissipative interactions. The resistance to rolling and spinning…
Effect of Shape and Friction on the Packing and Flow of Granular Materials
K. Michael Salerno, Dan S. Bolintineanu, Gary S. Grest +4
The packing and flow of aspherical frictional particles are studied using discrete element simulations. Particles are superballs with shape that varie…
Evaporation of Lennard-Jones Fluids
Shengfeng Cheng, Jeremy B. Lechman, Steven J. Plimpton +1
Evaporation and condensation at a liquid/vapor interface are ubiquitous interphase mass and energy transfer phenomena that are still not well understood. We have carried out large…
Equilibration of Long Chain Polymer Melts in Computer Simulations
Rolf Auhl, Ralf Everaers, Gary S. Grest +2
Several methods for preparing well equilibrated melts of long chains polymers are studied. We show that the standard method in which one starts with an ensemble of chains with the…
Discrete element simulations of stress distributions in silos: crossover from two to three dimensions
James W. Landry, Gary S. Grest, Stephen J. Plimpton
The transition from two-dimensional (2D) to three-dimensional (3D) granular packings is studied using large-scale discrete element computer simulations. We focus on vertical stress…
Confined granular packings: structure, stress, and forces
J. W. Landry, G. S. Grest, L. E. Silbert +1
The structure and stresses of static granular packs in cylindrical containers are studied using large-scale discrete element molecular dynamics simulations in three dimensions. We…