A fluid in contact with a semipermeable membrane: density functional approach

Abstract

A density functional (DF) approach based on Kierlik–Rosinberg formalism is applied to a binary hard sphere mixture interacting with a semipermeable membrane (SPM). The results of the calculations are compared with singlet level Percus–Yevick theory and with Monte Carlo simulations. The DF method seems capable of predicting accurate density profiles and osmotic pressures in systems with a SPM.