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The prediction of the minimum fluidization velocity of beds of Geldart's group B particles confined in a packed bed of coarse spheres can be achieved by extending to this peculiar type of systems the theory developed for modelling the behaviour of segregating beds of simultaneously fluidized solids.The approach is based on separate force balances on the fluid and the fine solids, capable to account...
The interaction between components during segregating fluidization of two-solid mixtures is shown to be an intrinsic feature of their mechanism of suspension. Separate force balances on either mixture component lead to assessing the individual contribution of the two solids to the total pressure drop. An analytical expression for the interaction force is thus obtained that explains why the complete...
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