Modeling the Microstructure and Stress in Dense Suspensions under Inhomogeneous Flow

J. J. J. Gillissen, C. Ness

Research output: Contribution to journalArticlepeer-review

Abstract

Under inhomogeneous flow, dense suspensions exhibit behavior that violates the conventional homogeneous rheology. Specifically, one finds flowing regions with a macroscopic friction coefficient below the yielding criterion, and volume fraction above the jamming criterion. We demonstrate the underlying physics by incorporating shear rate fluctuations into a recently proposed tensor model for the microstructure and stress, and applying the model to an inhomogeneous flow problem. The model predictions agree qualitatively with particle-based simulations.
Original languageEnglish
Article number184503
Number of pages6
JournalPhysical Review Letters
Volume125
Issue number18
Early online date27 Oct 2020
DOIs
Publication statusPublished - 30 Oct 2020

Fingerprint

Dive into the research topics of 'Modeling the Microstructure and Stress in Dense Suspensions under Inhomogeneous Flow'. Together they form a unique fingerprint.

Cite this