New, thermodynamically consistent, integral equation for simple fluids

Forrest J. Rogers and David A. Young
Phys. Rev. A 30, 999 – Published 1 August 1984
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Abstract

A new integral equation in which the hypernetted-chain and Percus-Yevick approximations are "mixed" as a function of interparticle separation is described. An adjustable parameter α in the mixing function is used to enforce thermodynamic consistency. For simple 1rn potential fluids, α is constant for all densities, and the solutions of the integral equations are in very good agreement with Monte Carlo calculations. For the one-component plasma, α is a slowly varying function of density, but the agreement between calculated solutions and Monte Carlo is also good. This approach has definite advantages over previous thermodynamically consistent equations.

  • Received 31 January 1984

DOI:https://doi.org/10.1103/PhysRevA.30.999

©1984 American Physical Society

Authors & Affiliations

Forrest J. Rogers and David A. Young

  • Lawrence Livermore National Laboratory, University of California, Livermore, California 94550

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Issue

Vol. 30, Iss. 2 — August 1984

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