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ENCIT 2020
18th Brazilian Congress of Thermal Sciences and Engineering
NUMERICAL SIMULATION OF FLUIDIZED BEDS WITH BONDED PARTICLES
Submission Author:
Nicolao Lima , SP
Co-Authors:
Nicolao Lima, Fernando David Cúñez, Erick de Moraes Franklin
Presenter: Nicolao Lima
doi://10.26678/ABCM.ENCIT2020.CIT20-0361
Abstract
This research proposes a numerical study of the fluidization of non-spherical particles in confined pipes. The fluidized bed system presented here consists of an ascending water flow in a 25.4 mm-ID pipe with 300 aluminum beads of 4.8 mm diameter combined in a triangle configuration, forming 100 bonded particles. Bonded atoms can assume different formations and geometries, and, therefore, can characterizes problems found in several branches of industry. The results obtained for a flow rate of 250 L/h showed the formation of plugs that quickly jam inside the pipe. We compared our results with the ones observed in ongoing experiments and both are in good agreement. Other experiments are still being carried out concurrently with the numerical simulations, and will be eventually used to validate our numerical model.
Keywords
Computational fluid dynamics (CFD), discrete element method (DEM), fluidized bed, bond, narrow pipes
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