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Simulation of rectangular fluidised bed with Geldart D particles.

Tandon, Mohit P.; Karnik, Aditya U.

Authors

Mohit P. Tandon

Aditya U. Karnik



Abstract

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.

Start Date Jun 17, 2014
Publication Date Jun 30, 2014
Publisher New Publisher Required
Pages 509-516
Book Title Proceedings of the 10th International computational fluid dynamics in the oil and gas, metallurgical and process industries conference (CFD 2014), 17-19 June 2014, Trondheim, Norway
ISBN 9788214057416
Institution Citation TANDON, M.P. and KARNIK, A.U. 2014. Simulation of rectangular fluidised bed with Geldart D particles. In Proceedings of the 10th International computational fluid dynamics in the oil and gas, metallurgical and process industries conference (CFD 2014), 17-19 June 2014, Trondheim, Norway. Trondheim: SINFEF [online], pages 509-516. Available from: https://www.sintef.no/g...014-redusert-filstr.pdf
Keywords Fluidization; Bubbling fluidized bed; Geldart D particle; Kinetic theory of granular flow
Publisher URL https://www.sintef.no/projectweb/cfd2014/old-proceedings/

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