Structural properties of confined sticky hard-sphere fluids

A simple density-functional approximation, which is based on both the hybrid weighted-density approximation of Leidl and Wagner and the density-functional approximation of Calleja et al., has been developed to study the structural properties of sticky hard-sphere fluids. The approximation has been applied to calculate the density profiles of sticky hard-sphere fluids confined in structureless hard walls, and the results have been compared with those from the available computer simulation and some other approximations. The calculated density profiles have shown that the approximation is better than the Choudhury-Ghosh and Kim-Suh approximations, and they compare very well with the results from the computer simulation.