Local Equilibrium Approach to Transport Processes in Dense Media

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Abstract
The viscosity and thermal conductivity of a dense medium is studied. A model is constructed in which the singlet distribution function remains in local equilibrium whereas the doublet distribution function deviates from its local equilibrium value. It is this deviation of the pair function which accounts for the potential contributions to the transport of momentum and energy in the dense fluid. An integral equation is deduced for that part of the correlation function relevant to these transport coefficients and an approximate solution is sketched. Finally this approximation is briefly discussed in connection with some other approaches to transport processes in liquids. Numerical results for the evaluation of the approximate expression for the viscosity coefficient will be published in due course.