SIMULATION OF RECTANGULAR FLUIDIZED BED WITH GELDART D PARTICLES
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In this study, simulations are carried out using the Euler-Euler
granular model in STAR-CCM+ for a gas-solid flow in a
rectangular bubbling fluidized bed. The problem studied was
announced as Small Scale Challenge Problem (SSCP-I) in
2013. Experiments for this problem were conducted by The
Department of Energy's (DOE) National Energy Technology
Laboratory (NETL). The objective of this numerical study is
to evaluate the reliability of the kinetic theory based granular
model (KTGF) in predicting the hydrodynamics of gas-solid
flows.
The experimental measurements of the bubbling fluidized bed
investigated in this numerical study are 3"x9"x48". The bed
material for the experiment is Geldart group D particles of
uniform size and high sphericity. Simulations were performed
for all the three gas superficial velocities (U = 2.19, 3.28 and
4.38 m/s) for which experiments were conducted. Results
from numerical simulations are validated for vertical
component of particle velocity, horizontal component of
particle velocity, granular temperature and the mean axial
pressure gradient. The effect of the treatment at wall
boundaries and coefficient of restitution (particle-particle
interactions) is studied on the results.
Keywords: Fluidization, Bubbling fluidized bed, Geldart D
particle, Kinetic theory of granular flow

Author Name: 
Mohit P. TANDON
Aditya U. KARNIK
Author Company: 
CD-adapco
Industries: 
Products: 
Conference Location: 
Trondheim, Norway
Conference Proceeding PDF: 
Conference Date: 
Tuesday, June 17, 2014
Conference Name: 
International Conference on CFD in Oil & Gas, Metallurgical and Process Industries