This project is for the course "Numerische Modellierung von Mehrphasenströmungen" offered by Department of Fluid Mechanics (Institute für Strömungsmechanik) at TU Dresden.
The collision is modelled using Soft-Sphere approach a.k.a Discrete Element Method. The Cell-Lists are used to prune the particles
before checking for the collision criterion. The contact law is non-linear.