Correlation-Function Method for the Transport Coefficients of Dense Gases. I. First Density Correction to the Shear Viscosity
The first density correction to the shear viscosity of the classical gas is calculated using the autocorrelation function expression. The technique employed is that due to Zwanzig suitably generalized to include dynamical fluxes containing particle coordinates. If we restrict ourselves to repulsive forces, our result is in complete agreement with that of Choh and Uhlenbeck obtained with the use of Bogolyubov's theory.