Comparison of sub-grid drag laws for modeling fluidized beds with the coarse grain DEM–CFD approach
Janna Grabowski,
Nico Jurtz,
Viktor Brandt
et al.
Abstract:Fluidized particulate systems can be well described by coupling the discrete element method (DEM) with computational fluid dynamics (CFD). However, the simulations are computationally very demanding. The computational demand is drastically reduced by applying the coarse grain (CG) approach, where several particles are summarized into larger grains. Scaling rules are applied to the dominant forces to obtain precise solutions. However, with growing grain size, an adequate representation of the interaction forces… Show more
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