Shear viscosity of strongly-coupled two-dimensional Yukawa liquids:: Experiment and modeling

被引：31

作者：

Donko, Z. ^{[1
]}

Hartmann, P. ^{[1
]}

机构：

[1] Hungarian Acad Sci, Res Inst Solid State Phys & Opt, H-1525 Budapest, Hungary

来源：

MODERN PHYSICS LETTERS B | 2007年 / 21卷 / 21期

基金：

美国国家航空航天局; 匈牙利科学研究基金会;

关键词：

strongly-coupled plasma; Yukawa liquid; shear viscosity; MOLECULAR-DYNAMICS SIMULATIONS; PARTICLE-PARTICLE-MESH; ONE-COMPONENT PLASMA; TRANSPORT-COEFFICIENTS; CRYSTALLIZATION; BIOMOLECULES; TRANSITION;

D O I：

10.1142/S0217984907013948

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

This paper reviews experimental and modeling efforts aimed at the determination of the shear viscosity of strongly-coupled Yukawa liquids. After briefly reviewing prior work on three-dimensional (3D) systems, recent experimental and computer simulation studies of two-dimensional (2D) settings are presented in detail. In the experiments two counterpropagating laser beams were used to perturb a dusty plasma monolayer and monitoring of the velocity field reconstructed from particle trajectories allowed the determination of the shear viscosity with the aid of an analytical model. Subsequent computer simulations based on the molecular dynamics approach resulted in velocity profiles which are in very good agreement with the experimental ones. Further simulation studies of idealized 2D Yukawa liquids (in which gas friction is neglected) gave results for the shear viscosity over a wide range of system parameters and demonstrated the existence of the shear thinning effect (non-Newtonian behavior) of the liquid at high shear rates.

引用

页码：1357 / 1376

页数：20

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