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Modeling segregation of polydisperse granular materials in hopper discharge
Size segregation of polydisperse materials during hopper discharge is problematic in various industrial situations. However, due to the complexity of hopper discharge flow kinematics and limited prediction techniques for polydisperse segregation, accurate modeling of polydisperse segregation during...
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Published in: | Powder technology 2020-09, Vol.374, p.389-398 |
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Main Authors: | , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | Size segregation of polydisperse materials during hopper discharge is problematic in various industrial situations. However, due to the complexity of hopper discharge flow kinematics and limited prediction techniques for polydisperse segregation, accurate modeling of polydisperse segregation during hopper discharge has been challenging. We extend the application of a general predictive continuum model that captures the effects of segregation, diffusion, and advection to polydisperse hopper flow. Model predictions of segregation within the hopper and the average particle diameter during discharge match experimentally validated discrete element method simulations and experiments.
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•A continuum model for polydisperse segregation of hopper discharge flow is developed.•Predictions of the model match discrete element simulations for varying initial conditions of the hopper.•Model predictions also agree well with experimental results. |
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ISSN: | 0032-5910 1873-328X |
DOI: | 10.1016/j.powtec.2020.06.065 |