2023
DOI: 10.1002/aic.18090
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Pressure‐controlled secondary flows and mixing in sheared Platonic solid‐shaped particles

Abstract: Granular materials exhibit unique secondary flow behaviors upon shearing. We demonstrate, using particle dynamics simulations, that the secondary flow patterns are controlled by a pressure exerted on particle bed. A threshold pressure, at which vortex flow transitions to disturbed or chaotic flow, depends on particle shape, that influences interparticle contacts and rheological performance. Our results show that the flow patterns are essentially determined by a dimensionless term combining pressure and granula… Show more

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