Please use this identifier to cite or link to this item:
https://hdl.handle.net/10356/106312
Title: | A numerical study of the segregation phenomenon of lognormal particle size distributions in the rotating drum | Authors: | Yang, Shiliang Sun, Yuhao Zhao, Ya Chew, Jia Wei |
Keywords: | Particle Properties Fluid Flows DRNTU::Engineering::Bioengineering |
Issue Date: | 2018 | Source: | Yang, S., Sun, Y., Zhao, Y., & Chew, J. W. (2018). A numerical study of the segregation phenomenon of lognormal particle size distributions in the rotating drum. Physics of Fluids, 30(5), 053301-. doi:10.1063/1.5026807 | Series/Report no.: | Physics of Fluids | Abstract: | Granular materials are mostly polydisperse, which gives rise to phenomena such as segregation that has no monodisperse counterpart. The discrete element method is applied to simulate lognormal particle size distributions (PSDs) with the same arithmetic mean particle diameter but different PSD widths in a three-dimensional rotating drum operating in the rolling regime. Despite having the same mean particle diameter, as the PSD width of the lognormal PSDs increases, (i) the steady-state mixing index, the total kinetic energy, the ratio of the active region depth to the total bed depth, the mass fraction in the active region, the steady-state active-passive mass-based exchanging rate, and the mean solid residence time (SRT) of the particles in the active region increase, while (ii) the steady-state gyration radius, the streamwise velocity, and the SRT in the passive region decrease. Collectively, these highlight the need for more understanding of the effect of PSD width on the granular flow behavior in the rotating drum operating in the rolling flow regime. | URI: | https://hdl.handle.net/10356/106312 http://hdl.handle.net/10220/48918 |
ISSN: | 1070-6631 | DOI: | 10.1063/1.5026807 | Schools: | School of Chemical and Biomedical Engineering | Research Centres: | Nanyang Environment and Water Research Institute Singapore Membrane Technology Centre |
Rights: | © 2018 The Author(s). All rights reserved. This paper was published by AIP Publishing in Physics of Fluids and is made available with permission of The Author(s). | Fulltext Permission: | open | Fulltext Availability: | With Fulltext |
Appears in Collections: | NEWRI Journal Articles SCBE Journal Articles |
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A numerical study of the segregation phenomenon of lognormal particle size distributions in the rotating drum.pdf | 12.27 MB | Adobe PDF | View/Open |
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