An equation for viscosity and isothermal compressibility of simple liquids from a closed-form expression for the effective viscosity of a dispersed system

摘要

Viscosity and isothermal compressibility of a simple liquid have been related by means of a closed-form equation for the low-shear viscosity of a liquid dispersion of solid particles. It involves macroscopic density, total correlation function and free volume. The equation achieved, which does not have an explicit solution, was approximated and applied to two sets of experimental data, where the free volume contribution was evaluated on the basis of experimental values of either volumes at zero fluidity or force constants for second virial coefficients and pair interaction potentials.