Gillissen, JJJ;
Ness, C;
Petersen, JD;
Wilson, HJ;
Cates, ME;
(2019)
Constitutive Model for Time-Dependent Flows of Shear-Thickening Suspensions.
Physical Review Letters
, 123
(21)
, Article 214504. 10.1103/PhysRevLett.123.214504.
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Abstract
We develop a tensorial constitutive model for dense, shear-thickening particle suspensions subjected to time-dependent flow. Our model combines a recently proposed evolution equation for the suspension microstructure in rate-independent materials with ideas developed previously to explain the steady flow of shear-thickening ones, whereby friction proliferates among compressive contacts at large particle stresses. We apply our model to shear reversal, and find good qualitative agreement with particle-level, discrete-element simulations whose results we also present.
| Type: | Article |
|---|---|
| Title: | Constitutive Model for Time-Dependent Flows of Shear-Thickening Suspensions |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.123.214504 |
| Publisher version: | https://doi.org/10.1103/PhysRevLett.123.214504 |
| Language: | English |
| Additional information: | This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Non-Newtonian fluids, Wet granular materials, Shear thickening |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Mathematics |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10084985 |
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