forgot password?
register here
Research articles
  search articles
  reviews guidelines
  articles index
My Pages
my alerts
  my messages
  my reviews
  my favorites
Members: 2829
Articles: 1'982'821
Articles rated: 2574

09 August 2020
  » arxiv » cond-mat/0502573

 Article overview

Liquid-vapor interface of a polydisperse fluid
Matteo Buzzacchi ; Nigel B. Wilding ;
Date 24 Feb 2005
Subject Soft Condensed Matter; Statistical Mechanics | cond-mat.soft cond-mat.stat-mech
AbstractWe report a Grand Canonical Monte Carlo simulation study of the liquid-vapor interface of a model fluid exhibiting polydispersity in terms of the particle size $sigma$. The bulk density distribution, $ ho^0(sigma)$, of the system is controlled by the imposed chemical potential distribution $mu(sigma)$. We choose the latter such that $ ho^0(sigma)$ assumes a Schulz form with associated degree of polydispersity $approx 14%$. By introducing a smooth attractive wall, a planar liquid-vapor interface is formed for bulk state points within the region of liquid-vapor coexistence. Owing to fractionation, the pure liquid phase is enriched in large particles, with respect to the coexisting vapor. We investigate how the spatial non-uniformity of the density near the liquid-vapor interface affects the evolution of the local distribution of particle sizes between the limiting pure phase forms. We find (as previously predicted by density functional theory, Bellier-Castella {em et al}, Phys. Rev. {f E65}, 021503 (2002)) a segregation of smaller particles to the interface. The magnitude of this effect is quantified for various $sigma$ via measurements of the relative adsorption. Additionally, we consider the utility of various estimators for the interfacial width and highlight the difficulties of isolating the intrinsic contribution of polydispersity to this width.
Source arXiv, cond-mat/0502573
Other source [GID 517261] pmid16089839
Services Forum | Review | PDF | Favorites   
Visitor rating: did you like this article? no 1   2   3   4   5   yes

No review found.
 Did you like this article?

This article or document is ...
of broad interest:
Global appreciation:

  Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.

browser CCBot/2.0 (
» my Online CV
» Free

News, job offers and information for researchers and scientists:
home  |  contact  |  terms of use  |  sitemap
Copyright © 2005-2020 - Scimetrica