Fluid Dynamic Behavior in a Spouted Bed with Binary Mixtures Differing in Size

Abstract

In this work, the response surface methodology has been used to quantify the effect of the mixture composition and static bed height on the minimum spouting condition, as well as on the segregation phenomena, for a spouted bed operating with binary mixtures, differing in size. In order to analyze the segregation phenomena, some computational fluid dynamic (CFD) simulations were performed. The CFD simulations, based on a Eulerian granular multiphase model, showed good agreement with experimental characteristic curves of a spouted bed operating with different mixtures compositions. Moreover, the simulated radial and axial profiles of fraction of the largest particles showed a coherent behavior, when compared with literature results.

Keywords:

• Fluid dynamic
• Mixture of particles
• Segregation
• Spouted bed