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Structure of liquid–vapor interface of square well fluid confined in a cylindrical pore

Yuri Reyes-Mercado, Pedro Orea, Simón López-Ramírez and Yurko Duda

Physica A: Statistical Mechanics and its Applications, 2009, vol. 388, issue 6, 799-805

Abstract: By means of the canonical Monte Carlo simulations, the vapor–liquid (VL) equilibrium and structure of square well (SW) fluids confined in a single cylindrical pore with repulsive surface, have been studied. Coexistence curves of the confined VL interface are determined for a wide range of temperatures and pore diameters. It is demonstrated that the confinement not only reduces the VL coexistence region but also induces strong inhomogeneities of the VL interface: coexistence liquid densities are different at the pore center and at the wall surface. It may be considered as a preliminary step for an isolated droplet formation inside the pore, as well as a tentative reason of the two VL phase transitions of simple fluids adsorbed into disordered porous media.

Keywords: Square well fluid; Cylindrical pore; Vapor–liquid interface (search for similar items in EconPapers)
Date: 2009
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:388:y:2009:i:6:p:799-805

DOI: 10.1016/j.physa.2008.11.022

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