CFD Simulation of Air Flow through the Annular Distributor of a Swirling Fluidized Bed

Vinod Kumar Venkiteswaran; Syaida Hazira Ramli; Vijay R. Raghavan

doi:10.4028/www.scientific.net/AMM.700.619

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 700CFD Simulation of Air Flow through the Annular...

CFD Simulation of Air Flow through the Annular Distributor of a Swirling Fluidized Bed

Abstract:

Fluidized beds are widely used in a variety of industrial processes. The air distributor being an integral part of the fluidized bed, the air flow characteristic through it is of great importance as far as the design and working of it is concerned. Inappropriate design will lead to an incomplete fluidization and improper mixing of the air and bed particles. The current study was carried out to investigate the flow characteristics and predict non-uniformity in flow through the annular distributor of a Swirling Fluidized Bed and its variation with various aspects of the distributor like blade overlap angle and blade inclination. In this study, the commercial CFD package FLUENT 6.3 was used for analysis. The velocity and pressure profiles for various blade designs were investigated at the distributor outlet based on several operating variables including air inlet velocities, blade overlap angles (9^o, 12^o, 15^o, and 18^o), blade inclinations (10^o and 15^o), along with variations in the opening between the distributor blades. The most significant finding of this work is that the fluid tends to flow through a path with least resistance. The flow path with the largest cross section area and shortest path length has been identified and explains the velocity profile at blade exit.

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Periodical:

Applied Mechanics and Materials (Volume 700)

Pages:

619-625

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.700.619

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Online since:

December 2014

Authors:

Vinod Kumar Venkiteswaran*, Syaida Hazira Ramli, Vijay R. Raghavan

Keywords:

Annular Distributor, Blade Inclination, Blade Overlap Angle, Flow Behavior, Swirling Fluidized Bed (SFB)

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