Effect of friction on dense suspension flows of hard particles
Trulsson, M. LU
; DeGiuli, E.
and Wyart, M.
(2017)
In Physical Review E: covering statistical, nonlinear, biological, and soft matter physics
95(1).
- Abstract
We use numerical simulations to study the effect of particle friction on suspension flows of non-Brownian hard particles. By systematically varying the microscopic friction coefficient μp and the viscous number J, we build a phase diagram that identifies three regimes of flow: frictionless, frictional sliding, and rolling. Using energy balance in flow, we predict relations between kinetic observables, confirmed by numerical simulations. For realistic friction coefficients and small viscous numbers (below J∼10-3), we show that the dominating dissipative mechanism is sliding of frictional contacts, and we characterize asymptotic behaviors as jamming is approached. Outside this regime, our observations support the idea that flow belongs to... (More)
We use numerical simulations to study the effect of particle friction on suspension flows of non-Brownian hard particles. By systematically varying the microscopic friction coefficient μp and the viscous number J, we build a phase diagram that identifies three regimes of flow: frictionless, frictional sliding, and rolling. Using energy balance in flow, we predict relations between kinetic observables, confirmed by numerical simulations. For realistic friction coefficients and small viscous numbers (below J∼10-3), we show that the dominating dissipative mechanism is sliding of frictional contacts, and we characterize asymptotic behaviors as jamming is approached. Outside this regime, our observations support the idea that flow belongs to the universality class of frictionless particles. We discuss recent experiments in the context of our phase diagram.
(Less)
- author
- Trulsson, M.
LU
; DeGiuli, E.
and Wyart, M.
- organization
- publishing date
- 2017-01-10
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review E: covering statistical, nonlinear, biological, and soft matter physics
- volume
- 95
- issue
- 1
- article number
- 012605
- publisher
- American Physical Society
- external identifiers
-
- scopus:85010447601
- pmid:28208434
- wos:000391864200009
- ISSN
- 2470-0045
- DOI
- 10.1103/PhysRevE.95.012605
- language
- English
- LU publication?
- yes
- id
- b6259be9-b03f-44e8-b4bc-598fe4c9a1b9
- date added to LUP
- 2017-03-02 10:25:21
- date last changed
- 2024-04-14 06:53:33
@article{b6259be9-b03f-44e8-b4bc-598fe4c9a1b9,
abstract = {{<p>We use numerical simulations to study the effect of particle friction on suspension flows of non-Brownian hard particles. By systematically varying the microscopic friction coefficient μp and the viscous number J, we build a phase diagram that identifies three regimes of flow: frictionless, frictional sliding, and rolling. Using energy balance in flow, we predict relations between kinetic observables, confirmed by numerical simulations. For realistic friction coefficients and small viscous numbers (below J∼10-3), we show that the dominating dissipative mechanism is sliding of frictional contacts, and we characterize asymptotic behaviors as jamming is approached. Outside this regime, our observations support the idea that flow belongs to the universality class of frictionless particles. We discuss recent experiments in the context of our phase diagram.</p>}},
author = {{Trulsson, M. and DeGiuli, E. and Wyart, M.}},
issn = {{2470-0045}},
language = {{eng}},
month = {{01}},
number = {{1}},
publisher = {{American Physical Society}},
series = {{Physical Review E: covering statistical, nonlinear, biological, and soft matter physics}},
title = {{Effect of friction on dense suspension flows of hard particles}},
url = {{http://dx.doi.org/10.1103/PhysRevE.95.012605}},
doi = {{10.1103/PhysRevE.95.012605}},
volume = {{95}},
year = {{2017}},
}