Imperial College London
Alternate

ProfessorSerafimKalliadasis

Faculty of Engineering, Department of Chemical Engineering

Prof in Engineering Science & Applied Mathematics
 
 
 
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Contact

 

+44 (0)20 7594 1373s.kalliadasis Website

 
 
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Assistant

 

Miss Jessica Baldock +44 (0)20 7594 5699

 
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Location

 

516ACE ExtensionSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Yatsyshin:2018:10.1080/00268976.2018.1473648,
author = {Yatsyshin, P and Parry, AO and Rascon, C and Kalliadasis, S},
doi = {10.1080/00268976.2018.1473648},
journal = {Molecular Physics},
pages = {1990--1997},
title = {Wetting of a plane with a narrow solvophobic stripe},
url = {http://dx.doi.org/10.1080/00268976.2018.1473648},
volume = {116},
year = {2018}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - We present a numerical study of a simple density functional theory model of fluidadsorption  occurring  on  a  planar  wall  decorated  with  a  narrow  deep  stripe  of  aweaker adsorbing (relatively solvophobic) material, where wall-fluid and fluid-fluidintermolecular  forces  are  considered  to  be  dispersive.  Both  the  stripe  and  outersubstrate  exhibit  first-order  wetting  transitions  with  the  wetting  temperature  ofthe  stripe  lying  above  that  of  the  outer  material.  This  geometry  leads  to  a  richphase diagram due to the interplay between the pre-wetting transition of the outersubstrate  and  an  unbending  transition  corresponding  to  the  local  evaporation  ofliquid near the stripe. Depending on the width of the stripe the line of unbendingtransitions  merges  with  the  pre-wetting  line  inducing  a  two-dimensional  wettingtransition occurring across the substrate. In turn, this leads to the continuous pre-drying of the thick pre-wetting film as the pre-wetting line is approached from above.Interestingly we find that the merging of the unbending and pre-wetting lines occurseven for the widest stripes considered. This contrasts markedly with the scenariowhere the outer material has the higher wetting temperature, for which the mergingof the unbending and pre-wetting lines only occurs for very narrow stripes.
AU  - Yatsyshin,P
AU  - Parry,AO
AU  - Rascon,C
AU  - Kalliadasis,S
DO  - 10.1080/00268976.2018.1473648
EP  - 1997
PY  - 2018///
SN  - 0026-8976
SP  - 1990
TI  - Wetting of a plane with a narrow solvophobic stripe
T2  - Molecular Physics
UR  - http://dx.doi.org/10.1080/00268976.2018.1473648
UR  - https://www.tandfonline.com/doi/full/10.1080/00268976.2018.1473648
UR  - http://hdl.handle.net/10044/1/59267
VL  - 116
ER  -
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