TITLE

Molecular dynamics of the surface tension of a drop

AUTHOR(S)
Nijmeijer, M. J. P.; Bruin, C.; van Woerkom, A. B.; Bakker, A. F.; van Leeuwen, J. M. J.
PUB. DATE
January 1992
SOURCE
Journal of Chemical Physics;1/1/1992, Vol. 96 Issue 1, p565
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The curvature dependence of the liquid–vapor surface tension is described in the limit of small curvatures by Tolman’s length. Measurements of it, either experimentally or in a simulation, have not yet given a clear idea of its magnitude, even its sign is being debated. Previous attempts to relate Tolman’s length to a pressure tensor have led to ill-defined expressions. From an analysis of the pressure difference over the interface of a liquid drop, a pressure tensor expression is obtained for Tolman’s length that does not suffer from the previously encountered inconsistencies. This pressure difference is studied in a simulation of liquid drops, leading to an estimate of Tolman’s length. It appears to be small and bounds are given on it.
ACCESSION #
7615216

 

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