Simulation of Reacting, Moving Granular Assemblies of Thermally Thick Particles by Discrete Element Method/Computational Fluid Dynamics

Abstract The potential and limitations of the discrete element method (DEM) coupled with computational fluid mechanics (CFD) to simulate chemically reacting, moving granular material interacting a flow are summarized. A special focus is set on thermally thick particles, which requires resolve intraparticle transport reaction processes. aspect complex particle shape addressed, as may dominate behavior in densely packed assemblies even more than details contact force laws. assembly assumed be gas. DEM/CFD will highlighted presenting three illustrative examples: large‐scale lime shaft kiln intermittent operation, an industrial‐size grate firing system for incineration municipal waste, small‐scale straw pellet stove.