LIGGGHTS® features high-performance, open source, customizable DEM simulations.
We have implemented a second generation multi-sphere method (advanced multi-sphere method), which allows corrected handling of contact dissipation (multi-sphere method)
This remedies the shortcomings of the multi-sphere method, which are outlined in this paper
http://www.sciencedirect.com/science/article/pii/S0032591008002143
A fully parallel version of the advanced multisphere method is made availaible to customers of DCS via a commerical support version for industrial users ("Premium version")
Example - standard multi-sphere simulation of particle-particle collision with increasing # of spheres per clump, same coefficient of restitution
Example - advanced multi-sphere simulation of particle-particle collision with increasing # of spheres per clump, same coefficient of restitution
Comparison between standard and advanced multi-sphere method: Comparison of chute flow impact distributions, same coefficient of restitution
