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The vicinity of an equilibrium three-phase contact line using density functional theory: Density profiles normal to the fluid interface

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journal contribution
posted on 2018-04-26, 10:23 authored by Andreas Nold, Luis Gonzalez MacDowell, David SibleyDavid Sibley, Benjamin D. Goddard, Serafim Kalliadasis
The paper by Nold et al. [Phys. Fluids, 26, 072001 (2014)] examined density profiles and the micro-scale structure of an equilibrium three-phase (liquid-vapour-solid) contact line in the immediate vicinity of the wall using elements from the statistical mechanics of classical fluids, namely density-functional theory. The present research note, building on the above work, further contributes to our understanding of the micro-scale structure of a contact line by quantifying the strong dependence of the liquid-vapour density profile on the normal distance to the interface, as compared to the dependence on the vertical distance to the substrate. A recent study by Benet et al. [J. Phys. Chem. C, 22079 (2014)] has shown that this could explain the emergence of a film-height dependent surface tension close to the wall, with implications for the Frumkin-Derjaguin theory

Funding

AN, DNS, BDG and SK acknowledge financial support Imperial College (IC) through a DTG International Studentship, from the Engineering and Physical Sciences Research Council (EPSRC) of the UK through Grant No. EP/L027186, EP/L025159 and EP/L020564 and the European Research Council (ERC) through Advanced Grant No. 24703

History

School

  • Science

Department

  • Mathematical Sciences

Published in

Molecular Physics

Citation

NOLD, A. ...et al., 2018. The vicinity of an equilibrium three-phase contact line using density functional theory: Density profiles normal to the fluid interface. Molecular Physics, 116 (17), pp.2239-2243.

Publisher

© Taylor & Francis

Version

  • AM (Accepted Manuscript)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Acceptance date

2018-03-28

Publication date

2018-05-27

Notes

This is an original manuscript of an article published by Taylor & Francis in Molecular Physics on 27 May 2018, available online: https://doi.org/10.1080/00268976.2018.1471223

ISSN

0026-8976

Language

  • en