Moving contact lines and dynamic contact angles: a 'litmus test'for mathematical models, accomplishments and new challenges

YD Shikhmurzaev - The European Physical Journal Special Topics, 2020 - Springer
After a brief overview of the 'moving contact-line problem'as it emerged and evolved as a
research topic, a 'litmus test'allowing one to assess adequacy of the mathematical models …

Droplet motion with contact-line friction: long-time asymptotics in complete wetting

L Giacomelli, MV Gnann… - Proceedings of the …, 2023 - royalsocietypublishing.org
We consider the thin-film equation for a class of free boundary conditions modelling friction
at the contact line, as introduced by E and Ren. Our analysis focuses on formal long-time …

Classical solutions to the thin-film equation with general mobility in the perfect-wetting regime

MV Gnann, AC Wisse - arXiv preprint arXiv:2310.20400, 2023 - arxiv.org
We prove well-posedness, partial regularity, and stability of a thin-film equation $ h_t+(m (h)
h_ {zzz}) _z= 0$ with general mobility $ m (h)= h^ n $ and mobility exponent $ n\in (1,\tfrac …

Spreading equilibria under mildly singular potentials: pancakes versus droplets

R Durastanti, L Giacomelli - Journal of Nonlinear Science, 2022 - Springer
We study global minimizers of a functional modeling the free energy of thin liquid layers over
a solid substrate under the combined effect of surface, gravitational, and intermolecular …

A dynamical systems approach for the contact-line singularity in thin-film flows

FB Belgacem, MV Gnann, C Kuehn - Nonlinear Analysis, 2016 - Elsevier
We are interested in a complete characterization of the contact-line singularity of thin-film
flows for zero and nonzero contact angles. By treating the model problem of source-type self …

Revisiting shikhmurzaev's approach to the contact line problem

A Ghosh, B Niethammer, JJL Velázquez - Acta Applicandae …, 2022 - Springer
In this paper, we revisit a model for the contact line problem which has been proposed by
Shikhmurzaev (Int. J. Multiph. Flow 19 (4): 589–610,). In the first part, in addition to …

Universal self-similar attractor in the bending-driven levelling of thin viscous films

C Pedersen, T Salez, A Carlson - Proceedings of the …, 2021 - royalsocietypublishing.org
We study theoretically and numerically the bending-driven levelling of thin viscous films
within the lubrication approximation. We derive Green's function of the linearized thin-film …

Relaxation to equilibrium in the one-dimensional thin-film equation with partial wetting and linear mobility

M Majdoub, N Masmoudi, S Tayachi - Communications in Mathematical …, 2021 - Springer
We investigate the large time behavior of compactly supported smooth solutions for a one-
dimensional thin-film equation with linear mobility in the regime of partial wetting. We show …

Thin-film equations with singular potentials: an alternative solution to the contact-line paradox

R Durastanti, L Giacomelli - Journal of Nonlinear Science, 2024 - Springer
In the regime of lubrication approximation, we look at spreading phenomena under the
action of singular potentials of the form P (h)≈ h 1-m as h→ 0+ with m> 1, modeling …

On the relationship between the thin film equation and Tanner's law

MG Delgadino, A Mellet - Communications on Pure and …, 2021 - Wiley Online Library
This paper is devoted to the asymptotic analysis of a thin film equation that describes the
evolution of a thin liquid droplet on a solid support driven by capillary forces. We propose an …