Non-Newtonian viscosity of interacting Brownian particles : comparison of theory and data
نویسندگان
چکیده
A recently developed first-principles approach to the non-linear rheology of dense colloidal suspensions is evaluated and its results compared to those from simulations of sheared systems close to their glass transitions. The predicted scenario of a universal transition of the structural dynamics between yielding of glasses and non-Newtonian (shear-thinning) fluid flow appears well obeyed, and calculations within simplified models rationalize the data over variations in shear rate and viscosity of up to three decades. (Some figures in this article are in colour only in the electronic version)
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