强耦合尘埃成分在弱电离等离子体中的黏度。
Viscosity of a strongly coupled dust component in a weakly ionized plasma.
机构信息
Joint Institute for High Temperatures RAS, Moscow, Russia.
出版信息
Phys Rev Lett. 2012 Aug 3;109(5):055002. doi: 10.1103/PhysRevLett.109.055002. Epub 2012 Aug 2.
Abstract
An experimental study of the kinematic viscosity has been carried out for dust particles of size 0.95 and 3.92 μm, in weakly ionized plasma over a wide range of dust coupling parameters. Measurements of viscosity for weakly correlated dusty-plasma systems are presented for the first time. An approximation for the estimation of viscosity constants is proposed. The measured viscosity constants are compared with theoretical estimates and numerical data.
摘要
开展了一项关于尺寸为 0.95 和 3.92 μm 的尘埃颗粒在宽范围的尘埃耦合参数下的弱电离等离子体中的运动粘度的实验研究。首次呈现了对弱相关尘埃等离子体系统的粘度测量结果。提出了一种估算粘度常数的近似方法。测量的粘度常数与理论估计和数值数据进行了比较。
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