Density profile and pressure of a confined fluid with core-softened potential: a one-dimensional model of water in a slit

Masao Iwamatsu

Physica A: Statistical Mechanics and its Applications, 2003, vol. 329, issue 1, 14-28

Abstract: The density profile and the pressure of a one-dimensional fluid with core-softened potential are calculated rigorously using the exact formula for the grand canonical partition function of a one-dimensional fluid. This core-softened potential has been used as a simple zeroth-order approximation of liquid water, which reproduces anomalous thermal expansion and predicts liquid–liquid phase transition. Our numerical results for a confined fluid suggest a highly structured density profile and pressure which are attributed to two possible packing methods of fluid particles interacting via the core-softened potential.

Keywords: Confined liquid; Water; One-dimensional model (search for similar items in EconPapers)
Date: 2003
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:329:y:2003:i:1:p:14-28

DOI: 10.1016/S0378-4371(03)00599-5

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