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Dynamic unbinding transitions and deposition patterns in dragged meniscus problems
conference contribution
posted on 2015-08-07, 12:29 authored by Mariano Galvagno, Dmitri TseluikoDmitri Tseluiko, Uwe ThieleWe sketch main results of our recent work on the transfer of a thin liquid film onto a flat plate
that is extracted from a bath of pure non-volatile liquid. Employing a long-wave hydrodynamic model, that
incorporates wettability via a Derjaguin (disjoining) pressure, we analyse steady-state meniscus profiles as the
plate velocity is changed. We identify four qualitatively different dynamic transitions between microscopic
and macroscopic coatings that are out-of-equilibrium equivalents of equilibrium unbinding transitions. The
conclusion briefly discusses how the gradient dynamics formulation of the problem allows one to systematically
extend the employed one-component model into thermodynamically consistent two-component models as used
to describe, e.g., the formation of line patterns during the Langmuir-Blodgett transfer of a surfactant layer.
Funding
We acknowledge support by the EU via the FP7 Marie Curie scheme (ITN MULTIFLOW, PITN-GA-2008-214919). The work of DT was partly supported by the EPSRC under grants EP/J001740/1, EP/K041134/1.
History
School
- Science
Department
- Mathematical Sciences
Published in
4th Micro and Nano Flows Conference (MNF2014)Citation
GALVAGNO, M., TSELUIKO, D. and THIELE, U., 2014. Dynamic unbinding transitions and deposition patterns in dragged meniscus problems. IN: Karayiannis, T., Konig, C.S. and Balabani, S. (eds). Proceedings of the 4th Micro and Nano Flows Conference (MNF2014), 6th-10th September 2014, University College London.Publisher
Brunel University LondonVersion
- SMUR (Submitted Manuscript Under Review)
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/Publication date
2014Notes
This conference paper is closed access.ISBN
9781908549167Language
- en