By Heshmat Massah and Srinivasa Mohan, Fluent Inc.

View the pdf of this Supplement

Gas-solid flows have been modeled in FLUENT for many years using the discrete phase model (DPM) and the Eulerian granular multiphase (EGM) model.

Air bubbles rising in a fluidized bed with internal heat exchanger tubes

Simulations have been performed successfully on cyclone separators, solids transport equipment, fluidized beds, filtration systems, sedimentation devices, and solids suspension systems. The DPM has recently been enhanced to account for time dependent flows, parallel processing, particle concentration, particle- particle interaction, wall erosion, and particle size effects. The EGM model, which takes into account the solids pressure and uses kinetic theory to compute the granular viscosity, now has the flexibility to work on unstructured meshes. These advances further enhance FLUENT's ability to model complex gas-solids flows. See the accompanying article for one example of how the EGM has been put to use to develop a unique filtration system.

FluentNEWS Supplement