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Constraint-Based Approach to Granular Dispersion Rheology

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Original languageEnglish
Article number128001
JournalPhysical Review Letters
Issue number12
Publication statusPublished - 17 Sep 2018


We present a phenomenological model for granular suspension rheology in which particle interactions enter as constraints to relative particle motion. By considering constraints that are formed and released by stress respectively, we derive a range of experimental flow curves in a single treatment and predict singularities in viscosity and yield stress consistent with literature data. Fundamentally, we offer a generic description of suspension flow that is independent of bespoke microphysics.

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