Please use this identifier to cite or link to this item: https://doi.org/10.1002/aic.14177
Title: Mixing behaviors of wet granular materials in gas fluidized bed systems
Authors: Chuan Lim, E.W. 
Hee Tan, R.B.
Xiao, Z.
Keywords: Computational fluid dynamics
Discrete element method
Fluidized beds
Mixing
Wet granular materials
Issue Date: Nov-2013
Citation: Chuan Lim, E.W., Hee Tan, R.B., Xiao, Z. (2013-11). Mixing behaviors of wet granular materials in gas fluidized bed systems. AIChE Journal 59 (11) : 4058-4067. ScholarBank@NUS Repository. https://doi.org/10.1002/aic.14177
Abstract: The discrete element method combined with computational fluid dynamics was coupled with a capillary liquid bridge force model for computational studies of mixing behaviors in gas fluidized bed systems containing wet granular materials. Due to the presence of strong capillary liquid bridge forces between wet particles, relative motions between adjacent particles were hindered. There was a high tendency for wet particles to form large aggregates within which independent motions of individual particles were limited. This resulted in much lower mixing efficiencies in comparison with fluidization of dry particles. Capillary liquid bridge forces were on average stronger than both fluid drag forces and particle-particle collision forces and this accounted for the difficulty with which individual particles could be removed and transferred between aggregates. Such exchange of particles between aggregates was necessary for mixing to occur during fluidization of wet granular materials but required strong capillary liquid bridge forces to be overcome. © 2013 American Institute of Chemical Engineers.
Source Title: AIChE Journal
URI: http://scholarbank.nus.edu.sg/handle/10635/89433
ISSN: 00011541
DOI: 10.1002/aic.14177
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