CFD analysis of hydrodynamic studies of a bubbling fluidized bed

Fluidization velocity is one of the most important parameter to characterize the hydrodynamic studies of fluidized bed asit determines different flow regimes. Computational Fluid Dynamics simulations are carriedfor a cylindrical bubbling fluidized bed with a static bed height 1m with 0.150m diameter...

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Bibliographic Details
Published inIOP conference series. Materials Science and Engineering Vol. 330; no. 1; pp. 12090 - 12100
Main Authors Rao, B J M, Rao, K V N S, Janardhana, G Ranga
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.03.2018
Subjects
Aerodynamics
Air intakes
Bubbling
CAD
Computational fluid dynamics
Computer aided design
Fluid dynamics
Fluidized beds
Gasification
Parameters
Particle size
Simulation
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Summary:Fluidization velocity is one of the most important parameter to characterize the hydrodynamic studies of fluidized bed asit determines different flow regimes. Computational Fluid Dynamics simulations are carriedfor a cylindrical bubbling fluidized bed with a static bed height 1m with 0.150m diameter of gasification chamber. The parameter investigated is fluidization velocity in range of 0.05m/s to 0.7m/s. Sand with density 2600kg/m3 and with a constant particle diameter of sand 385μm is employed for all the simulations. Simulations are conducted using the commercial Computational Fluid Dynamics software, ANSYS-FLUENT.The bubbling flow regime is appeared above the air inlet velocity of 0.2m/s. Bubbling character is increased with increase in inlet air velocities indicated by asymmetrical fluctuations of volume fractions in radial directions at different bed heights
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/330/1/012090