Shear viscosity and shear thinning in two-dimensional Yukawa liquids

Details Shear viscosity and shear thinning in two-dimensional Yukawa liquids Shear viscosity and shear thinning in two-dimensional Yukawa liquids

2006-03-24

arxiv.org/abs/cond-mat/0603667v1

Physics

Condensed Matter

Soft Condensed Matter

11 pages text and 4 figures

Scientific paper

10.1103/PhysRevLett.96.145003

A two-dimensional Yukawa liquid is studied using two different nonequilibrium molecular dynamics simulation methods. Shear viscosity values in the limit of small shear rates are reported for a wide range of Coulomb coupling parameter and screening length. At high shear rates it is demonstrated that this liquid exhibits shear thinning, i.e., the viscosity $\eta$ diminishes with increasing shear rate. It is expected that two-dimensional dusty plasmas will exhibit this effect.

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