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Kinetic Theory for Granular Materials: Polydispersity
Abstract
Kinetic-theory-based models of rapid, polydisperse, solids flows are essential for the prediction of a wide range of practical flows found in both nature and industry. In this work, existing models for granular flows are critically compared by considering the techniques used for their derivation and the expected implications of those techniques. The driving forces for species segregation, as predicted by kinetic theory models, are then reviewed. Although the rigor associated with the development of such models has improved considerably in the recent past, a systematic assessment of model validity and computational efficiency is still needed. Finally, a rigorous extension of such models to gas-solid flows is discussed.
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