Magnetic particle tracking for nonspherical particles in a cylindrical fluidized bed

Journal article (2017)

Authors

Kay A. Buist Eindhoven University of Technology
Pavithra Jayaprakas Eindhoven University of Technology
J.A.M. Kuipers Eindhoven University of Technology
Niels G. Deen Eindhoven University of Technology
J.T. Padding Intensified Reaction and Separation Systems - Mechanical, Maritime and Materials Engineering
Research Group
Intensified Reaction and Separation Systems (Mechanical, Maritime and Materials Engineering) (TU Delft)
Copyright: © 2017 Kay A. Buist, Pavithra Jayaprakas, J.A.M. Kuipers, Niels G. Deen, J.T. Padding
DOI: https://doi.org/10.1002/aic.15854
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Published Date

2017

Language

English

Faculty

Mechanical, Maritime and Materials Engineering

Department

Process and Energy

Research Group

Intensified Reaction and Separation Systems

Abstract

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.