Non--Newtonian viscosity of interacting Brownian particles: comparison of theory and data

Details Non--Newtonian viscosity of interacting Brownian particles: comparison of theory and data Non--Newtonian viscosity of interacting Brownian particles: comparison of theory and data

2002-10-09

arxiv.org/abs/cond-mat/0210194v1

Physics

Condensed Matter

Soft Condensed Matter

6 pages, 2 figures; J. Phys. Condens. Matter to be published (Jan. 2003)

Scientific paper

10.1088/0953-8984/15/1/355

A recent first-principles approach to the non-linear rheology of dense colloidal suspensions is evaluated and compared to simulation results 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 3 decades.

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