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Title: Isobaric molecular dynamics version of the generalized replica exchange method (gREM): Liquid–vapor equilibrium

A prescription for sampling isobaric generalized ensembles with molecular dynamics is presented and applied to the generalized replica exchange method (gREM), which was designed for simulating first-order phase transitions. The properties of the isobaric gREM ensemble are discussed and a study is presented of the liquid-vapor equilibrium of the guest molecules given for gas hydrate formation with the mW water model. As a result, phase diagrams, critical parameters, and a law of corresponding states are obtained.
Authors:
 [1] ;  [1] ;  [1]
  1. Boston Univ., Boston, MA (United States)
Publication Date:
OSTI Identifier:
1247477
Grant/Contract Number:
SC0008810
Type:
Accepted Manuscript
Journal Name:
Journal of Physical Chemistry. B, Condensed Matter, Materials, Surfaces, Interfaces and Biophysical Chemistry
Additional Journal Information:
Journal Volume: 119; Journal Issue: 42; Journal ID: ISSN 1520-6106
Publisher:
American Chemical Society
Research Org:
Boston Univ., Boston, MA (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Contributing Orgs:
Boston University Center for Computational Science
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 36 MATERIALS SCIENCE; 97 MATHEMATICS AND COMPUTING phase transitions; liquid-vapor; computer simulation; algorithm design