COMMENTS ON BUOYANCY IN FLUIDIZED-BEDS

P. U. Foscolo et al. have recently proposed analyses of packed and fluidized beds which include an unusual formulation of the force exerted by the fluidizing fluid on an individual particle in a fluidized suspension. P. U. Foscolo has also presented an alternative derivation from the macroscopic pressure gradient. The authors examine both analyses of Foscolo et al. in detail. The authors examine the implications resulting from attempts to reformulate existing formulations. 23 refs.