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CFD Modeling of Fluidized Beds

Jamshidi, Rashid and Mazzei, Luca (2018) CFD Modeling of Fluidized Beds. Reference Module in Chemistry, Molecular Sciences and Chemical Engineering.


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We review the mathematical modeling of fluidized suspensions with focus on the Eulerian (or multifluid) approach. After a brief survey of different modeling approaches adopted for multiphase flows, we discuss the Eulerian equations of motion for fluidized suspensions of a finite number of monodisperse particle classes, obtained by volume averaging. We present the problem of closure for the stress tensors and the interaction forces between the phases and report some of the constitutive relations used for them in the literature. Finally, we explain briefly the population balance modeling approach, which allows handling suspensions of particles continuously distributed over any of their properties of interest.

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