Density functional approach to nonlinear rheology
- Reinhardt, Johannes Department of Physics, University of Fribourg, Switzerland
- Weysser, F. Institut Charles Sadron, CNRS - Strasbourg, France
- Brader, Joseph M. Department of Physics, University of Fribourg, Switzerland
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01.04.2013
Published in:
- EPL (Europhysics Letters). - 2013, vol. 102, no. 2, p. 28011
English
We present a density-functional–based closure of the pair Smoluchowski equation for Brownian particles under shear flow. Given an equilibrium free-energy functional as input, the theory provides first-principles predictions for the flow-distorted pair correlation function and associated rheological quantities over a wide range of volume fractions and flow rates. Taking two-dimensional hard disks under shear flow as an illustrative model, we calculate the pair correlation function, viscosity and normal-stress difference under both steady and start-up shear.
- Faculty
- Faculté des sciences et de médecine
- Department
- Département de Physique
- Language
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- English
- Classification
- Physics
- License
- License undefined
- Identifiers
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- RERO DOC 136724
- DOI 10.1209/0295-5075/102/28011
- Persistent URL
- https://folia.unifr.ch/unifr/documents/303163
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