Yukawa潜力
剪切粘度
剪切(地质)
剪切减薄
机械
剪切速率
粘度
牛顿流体
材料科学
等离子体
流变学
分子动力学
经典力学
物理
热力学
复合材料
粒子物理学
量子力学
作者
Z. Donkó,Péter Hartmann,J. Goree
标识
DOI:10.1142/s0217984907013948
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.
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