Theory of Nonlinear Rheology and Yielding of Dense Colloidal Suspensions
Phys. Rev. Lett. 89, 248304 – Published 25 November, 2002
DOI: https://doi.org/10.1103/PhysRevLett.89.248304
Abstract
A first-principles approach to the nonlinear flow of dense suspensions is presented which captures shear thinning of colloidal fluids and dynamical yielding of colloidal glasses. The advection of density fluctuations plays a central role, suppressing the caging of particles and speeding up structural relaxation. A mode coupling approach is developed to explore these effects.