title: Size dependence of the contact angle of a nanodrop in a nanocavity: density functional theory considerations.
abstract: The dependence of the contact angles of nanodrops of Lennard-Jones type fluids in nanocavities on their sizes are calculated using a nonlocal density functional theory in a canonical ensemble. Cavities of various radii and depths, various temperatures, as well as various values of the energy parameter of the fluid-solid interactions were considered. It is argued that this dependence might affect strongly, for instance, the rate of heterogeneous nucleation on rough surfaces, which is usually calculated under the assumption of constant contact angle.
authors.affiliation: Department of Chemical and Biological Engineering, State University of New York at Buffalo, Buffalo, New York 14260, USA. gberim@buffalo.edu
authors.forename: Gersh O
authors.initials: GO
authors.lastname: Berim
authors.forename: Eli
authors.initials: E
authors.lastname: Ruckenstein