The density profile of a fluid confined to a slit

We report on the application of a density-functional proposed by Rickayzen and Augousti (1984, Molec. Phys., 52, 1355) to the study of a LJ-fluid confined between parallel planar walls. The density profiles obtained are compared with the results of computer simulation obtained by Walton and Quirke (1986, Chem. Phys. Lett., 129, 382) for attractive walls as well as with new results obtained by the authors for hard walls. The agreement is good except at temperatures well below the critical one.