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Parameters affecting the localized fluidization in a particle medium
Author(s) -
Mena Sarah E.,
Luu LiHua,
Cuéllar Pablo,
Philippe Pierre,
Curtis Jennifer Sinclair
Publication year - 2017
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.15665
Subject(s) - fluidization , particle (ecology) , mechanics , chimney (locomotive) , materials science , fluidized bed , planar , optics , geology , thermodynamics , physics , inlet , geomorphology , oceanography , computer graphics (images) , computer science
The current study presents experiments for the initial stages of fluidization induced by a localized fluid injection. The process was studied by recording high‐speed videos in a 2‐D‐region far from the boundaries using Planar Laser Induced Fluorescence and Refractive Index Matching. The experimental setup allowed for several parameters to be systematically studied including particle sizes, initial bed heights, and injection port diameters. The results show that the critical flow rate required for fluidization is primarily dependent on the initial height of the granular bed. However, this dependence is not a linear relation but progressively plateaus for larger heights. Conversely, the diameter of the chimney relates only slightly to the injection port diameter and significantly more to the diameter of the particles. © 2016 American Institute of Chemical Engineers AIChE J , 63: 1529–1542, 2017