Spouting of Bidisperse Mixture of Particles: A CFD and Experimental Study

Many spouted bed applications involve mixtures of particles of different sizes, shapes, or densities. Depending on the characteristics of the particle mixture, undesirable phenomena such as particle segregation may occur, mainly due to differences in terminal velocities. Thus, a better understanding...

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Bibliographic Details
Published in:Drying technology 2012-09, Vol.30 (11-12), p.1354-1367
Main Authors: Santos, K. G, Santos, D. A, Duarte, C. R, Murata, V. V, Barrozo, M. A. S
Format: Article
Language:English
Subjects:
Atoms & subatomic particles
Binary mixtures
Computational fluid dynamics
Drying agents
Experiments
Fluid dynamics
fluid mechanics
mixing
particle size
Segregation
Simulation
Spouted bed
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Summary:Many spouted bed applications involve mixtures of particles of different sizes, shapes, or densities. Depending on the characteristics of the particle mixture, undesirable phenomena such as particle segregation may occur, mainly due to differences in terminal velocities. Thus, a better understanding of the fluid dynamics of particle mixtures is still needed in this field. In this work, experiments and computational simulations were performed to analyze some aspects of the fluid dynamics of segregation patterns in conical spouted beds with binary mixtures. The simulated results are consistent with experimental data and can be used to predict regions of particle mixing or segregation in spouted beds.
ISSN:1532-2300
0737-3937
1532-2300
DOI:10.1080/07373937.2012.684735