Practical formula for the shear viscosity of Yukawa fluids
Sergey Khrapak
TL;DR
This paper presents a simple, practical formula to estimate the shear viscosity of Yukawa fluids across a wide temperature range, aligning well with molecular dynamics results and discussing phase transition effects.
Contribution
The paper introduces a new practical formula for shear viscosity of Yukawa fluids valid over extensive temperature ranges, including near phase transitions.
Findings
Formula agrees with molecular dynamics simulations
Shear viscosity varies with temperature near phase transition
Discusses temperature dependence of diffusion coefficients
Abstract
A simple practical formula for the shear viscosity coefficient of Yukawa fluids is presented. This formula allows estimation of the shear viscosity in a very extended range of temperatures, from the melting point to times the melting temperature. It demonstrates reasonable agreement with the available results from molecular dynamics simulations. Some aspects of the temperature dependence of the shear viscosity and diffusion coefficients on approaching the fluid-solid phase transition are discussed.
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