CFD modeling of a spouted bed with a porous draft tube--颗粒学报PARTICUOLOGY

Azizi, S., Hosseini, S. H., Moraveji, M., & Ahmadi, G. (2010). CFD modeling of a spouted bed with a porous draft tube. Particuology, 8(5), 415-424. https://doi.org/10.1016/j.partic.2009.12.004

CFD modeling of a spouted bed with a porous draft tube

Salar Azizi ^a *, Seyyed Hossein Hosseini ^b, M. Moraveji ^a, Goodarz Ahmadi ^c

a Chemical Engineering Department, Faculty of Engineering, Arak University, Sardasht, Arak 38156-875, Iran
b Department of Chemical Engineering, Faculty of Engineering, Ilam University, Ilam, Iran
c Department of Mechanical and Aeronautical Engineering, Clarkson University, Potsdam, NY 13699-5725, USA

10.1016/j.partic.2009.12.004

Volume 8, Issue 5, October 2010, Pages 415-424

Received 26 February 2009, Revised 30 August 2009, Accepted 16 December 2009, Available online 31 July 2010.

E-mail: sa_azizi@yahoo.com

Highlights

Abstract

Spouted bed with a porous draft tube is used for drying of grains and chemical products and thermal disinfestations process. This work provides a computational fluid dynamics (CFD) simulation of binary mixtures of glass particles in a spouted bed with a porous draft tube. The simulation used the multi-fluid Eulerian–Eulerian approach based on kinetic theory of granular flows, incorporating a kinetic-frictional constitutive model for dense assemblies of particulate solids and Gidaspow's drag model for the interaction between gas and particles. Influences of solids mass fraction and inlet gas flow rate on pressure distribution, gas and particle velocities were studied. The modeling results were compared with the experimental work of Ishikura, Nagashima, and Ide (2003) for the flow condition along the axis of the spouted bed. Good agreement between the modeling results and experimental data was observed.

Graphical abstract

Keywords

Spouted bed; Porous draft tube; Hydrodynamics; Kinetic theory; CFD

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