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Magnetic particle tracking for nonspherical particles in a cylindrical fluidized bed
Author(s) -
Buist Kay A.,
Jayaprakash Pavithra,
Kuipers J.A.M.,
Deen Niels G.,
Padding Johan T.
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.15854
Subject(s) - fluidization , tracking (education) , particle (ecology) , mechanics , fluidized bed , range (aeronautics) , orientation (vector space) , position (finance) , materials science , aspect ratio (aeronautics) , magnetosphere particle motion , classical mechanics , physics , magnetic field , geometry , composite material , geology , thermodynamics , mathematics , psychology , finance , quantum mechanics , economics , pedagogy , oceanography
In granular flow operations, often particles are nonspherical. This has inspired a vast amount of research in understanding the behavior of these particles. Various models are being developed to study the hydrodynamics involving nonspherical particles. Experiments however are often limited to obtain data on the translational motion only. This paper focusses on the unique capability of Magnetic Particle Tracking to track the orientation of a marker in a full 3‐D cylindrical fluidized bed. Stainless steel particles with the same volume and different aspect ratios are fluidized at a range of superficial gas velocities. Spherical and rod‐like particles show distinctly different fluidization behavior. Also, the distribution of angles for rod‐like particles changes with position in the fluidized bed as well as with the superficial velocity. Magnetic Particle Tracking shows its unique capability to study both spatial distribution and orientation of the particles allowing more in‐depth validation of Discrete Particle Models. © 2017 The Authors AIChE Journal published by Wiley Periodicals, Inc. on behalf of American Institute of Chemical Engineers AIChE J , 63: 5335–5342, 2017