Meng, Y;
Papageorgiou, DT;
Vanden-Broeck, JM;
(2024)
Steady Wind-Generated Gravity-Capillary Waves on Viscous Liquid Film Flows.
SIAM Journal on Applied Mathematics
, 84
(2)
pp. 477-496.
10.1137/23M1586318.
Preview |
Text
Vanden-Broeck_23m1586318.pdf Download (2MB) | Preview |
Abstract
Steady gravity-capillary periodic waves on the surface of a thin viscous liquid film supported by an air stream on an inclined wall are investigated. Based on lubrication approximation and thin air-foil theory, this problem is reduced to an integro-differential equation. The small-amplitude analysis is carried out to obtain two analytical solutions up to the second order. Numerical computation shows there exist two distinct primary bifurcation branches starting from infinitesimal waves, which approach solitary wave configuration in the long-wave limit when the values of physical parameters are above certain thresholds. New families of solutions manifest themselves either as secondary bifurcation occurring on primary branches or as isolated solution branches. The limiting configurations of the primary solution branches with the increase of two parameters are studied in two different cases, where one and two limiting configurations are obtained, respectively. For the latter case, the approximation of the configurations is given.
| Type: | Article |
|---|---|
| Title: | Steady Wind-Generated Gravity-Capillary Waves on Viscous Liquid Film Flows |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1137/23M1586318 |
| Publisher version: | https://doi.org/10.1137/23M1586318 |
| Language: | English |
| Additional information: | This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | thin films, air/liquid flows, gravity-capillary waves |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Mathematics |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10189230 |
Archive Staff Only
 |
View Item |
