Ansys Fluent allows you to use the discrete element method (DEM) as part of the DPM capability. To use the DEM model, refer to Modeling Collision Using the DEM Model in the User's Guide.

The discrete element method is suitable for simulating granular matter (such as gravel, coal, beads of any material). Such simulations are characterized by a high volume fraction of particles, where particle-particle interaction is important. Note that interaction with the fluid flow may or may not be important. Typical applications include: