Simulation of Granular Compacts in two dimensions

摘要

Simulations of granular packings in 2-D by throwing disks in a rectangular die are performed. Different size distributions as bimodal, uniform and Gaussian are used. Once the array of particles is done, A relaxation process is carried on using a large-amplitude, Low-frequency vertical shaking. This relaxation is Performed a number N of times. Then, we measure the Density of the package, contact distribution, coordination Number distribution, entropy and also the disks size distri- bution vs. Height. The dependence of all these magnitudes On the number N of "shakings" used to relax the packing And on the size distribution parameters are explored and Discussed.