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dc.contributor.authorZhao, Yaen_US
dc.contributor.authorCocco, Ray A.en_US
dc.contributor.authorYang, Shiliangen_US
dc.contributor.authorChew, Jia Weien_US
dc.identifier.citationZhao, Y., Cocco, R. A., Yang, S. & Chew, J. W. (2019). DEM study on the effect of particle-size distribution on jamming in a 3D conical hopper. AIChE Journal, 65(2), 512-519.
dc.description.abstractDespite the advancement on the understanding on the unwelcome phenomenon of hopper jamming, the influence of the particle-size distribution (PSD) width of the ubiquitous continuous PSDs remains unknown. Accordingly, this study investigated using discrete element method a range of PSD widths (10%≤σ/μ≤50%) of lognormal PSDs with a constant mean particle diameter of 10 mm in a three-dimensional hopper. Results indicate that, although the monodisperse particles of 10 mm diameters do not jam, the wider PSDs (σ/μ≥30%) jam. The flatter arches and higher mass-averaged force that are linked to the denser packing of wider PSDs underlie the propensity to jam. To reduce the jamming probability, the friction coefficient and initial fill height can be reduced, but not changes in particle density. The results here highlight that the mean particle diameter alone is an insufficient parameter to predict jamming and the impact of PSD width is non-negligible.en_US
dc.description.sponsorshipNational Research Foundation (NRF)en_US
dc.relation.ispartofAIChE Journalen_US
dc.rights© 2018 American Institute of Chemical Engineers. All rights reserved.en_US
dc.subjectEngineering::Chemical engineeringen_US
dc.titleDEM study on the effect of particle-size distribution on jamming in a 3D conical hopperen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Chemical and Biomedical Engineeringen_US
dc.contributor.researchSingapore Membrane Technology Centreen_US
dc.contributor.researchNanyang Environment and Water Research Instituteen_US
dc.subject.keywordsHopper Jammingen_US
dc.subject.keywordsDiscrete Element Methoden_US
dc.description.acknowledgementThe authors would like to acknowledge the financial support provided by the National Research Foundation (NRF), Prime Minister's Office, Singapore, under its Campus for Research Excellence and Technological Enterprise (CREATE) program, and also the 2nd Intra-CREATE Seed Collaboration Grant (NRF2017-ITS002-013).en_US
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