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@ARTICLE{Pelusi:911404,
author = {Pelusi, Francesca and Sega, M. and Harting, J.},
title = {{L}iquid film rupture beyond the thin-film equation: {A}
multi-component lattice {B}oltzmann study},
journal = {Physics of fluids},
volume = {34},
number = {6},
issn = {1070-6631},
address = {[S.l.]},
publisher = {American Institute of Physics},
reportid = {FZJ-2022-04687},
pages = {062109 -},
year = {2022},
abstract = {Under the condition of partial surface wettability, thin
liquid films can be destabilized by small perturbations and
rupture into droplets. Assuccessfully predicted by the thin
film equation (TFE), the rupture dynamics are dictated by
the liquid–solid interaction. The theorydescribes the
latter using the disjoining pressure or, equivalently, the
contact angle. The introduction of a secondary fluid can
lead to a richerphenomenology, thanks to the presence of
different fluid/surface interaction energies but has so far
not been investigated. In this work, westudy the rupture of
liquid films with different heights immersed in a secondary
fluid using a multi-component lattice Boltzmann
(LB)approach. We investigate a wide range of surface
interaction energies, equilibrium contact angles, and film
thicknesses. We found that therupture time can differ by
about one order of magnitude for identical equilibrium
contact angles but different surface free
energies.Interestingly, the TFE describes the observed
breakup dynamics qualitatively well, up to equilibrium
contact angles as large as 130. A smallfilm thickness is a
much stricter requirement for the validity of the TFE, and
agreement with LB results is found only for ratios e ¼ h=L
ofthe film height h and lateral system size L, such as e
103.},
cin = {IEK-11},
ddc = {530},
cid = {I:(DE-Juel1)IEK-11-20140314},
pnm = {1215 - Simulations, Theory, Optics, and Analytics (STOA)
(POF4-121) / DFG project 431791331 - SFB 1452: Katalyse an
flüssigen Grenzflächen},
pid = {G:(DE-HGF)POF4-1215 / G:(GEPRIS)431791331},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000811423800006},
doi = {10.1063/5.0093043},
url = {https://juser.fz-juelich.de/record/911404},
}