On the Kinetic Theory of Dense Fluids. XVIII. The Bulk Viscosity

A formula for the bulk viscosity of a simple liquid has been obtained from the solutions of the kinetic equations proposed by Rice and Allnatt. The reliability of numerical results obtained is limited to about ±20% by uncertainties in the radial distribution function, its density dependence, and the pair potential. Nevertheless, the theory unambiguously predicts that the ratio of bulk to shear viscosity for liquid argon, at a density of 1.12 g·cm—3 and temperatures between 128° and 185°K, should be approximately 1.3.

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