DFG-Forschungszentrum Matheon Berlin

Project C10

Marangoni-driven films emerging from a reservoir

[PROJECT DATA]
Research Team: Dr. P. L. Evans, HU and
PD Dr. Andreas Münch, HU, WIAS, Nottingham.
Support: Matheon DFG Research Centre
Contact: For further information about this project, please contact Dr. Evans.

Background

Thin liquid films play an important role in many application areas and also in everyday life.

Recent Progress

Other results

We investigated the dynamics of a film rising from a reservoir onto a tilted substrate, in particular, near the meniscus that connects the film to the reservoir. Equilibrium solutions for the meniscus at different inclination angles of the substrate using phase space methods were found and a rich solution structure could be classified, including a monotonic equilibrium solution and multiple non-monotonic solutions with the same far-field film thickness [ME05]. A second paper [EM06] explored the interaction of these solutions with the classical and non-classical wave structures in the thin film.

Evolution of a rarefaction fan at a meniscus Tears of wine, by A. Münch

Publications

[EM06] P. L. Evans and A. Münch.
Interaction of advancing fronts and meniscus profiles formed by surface-tension-gradient-driven liquid films.
SIAM J. Appl. Math., 66(5):1610-1631, 2006.
[ME05] A. Münch and P. L. Evans.
Marangoni-driven liquid films rising out of a meniscus onto a nearly horizontal substrate.
Physica D, 209(1-4):164-177, 2005.
[JAM05] B. Jin, A. Acrivos, and A. Münch.
The drag-out problem in film coating.
Phys. Fluids, 17:103603, 2005

Collaboration and partners

[LOGO AREA]
WIAS Humboldt-Universität zu Berlin

Pete Evans, April 2008