Title
Fluid accumulation in thin-film flows driven by surface tension and gravity.
Abstract
In this note we derive a model describing the two-dimensional viscous flow driven by surface tension and gravity of a thin liquid film near a stagnation point. In the thin-film approximation of such a flow, accumulation takes place where the combined effects of gravity and surface tension stop the flow. These stagnation points are characterised to leading order by the geometry of the substrate. We first derive the thin-film approximation that describes the flow away from such accumulation regions. Then, assuming the existence of isolated stagnation points, we derive the boundary layer equation describing the inner structure of solutions describing accumulation. The existence of these solutions has been proved by the authors elsewhere. Finally, in order to justify the model we prove the existence of curves that give a substrate with an isolated stagnation point.
Year
DOI
Venue
2013
10.1016/j.aml.2013.01.005
Applied Mathematics Letters
Keywords
Field
DocType
Thin-film approximation,Stagnation point,Forced nonlinear pendulum
Stagnation pressure,Surface tension,Mathematical analysis,Flow (psychology),Fluid accumulation,Boundary layer,Stagnation temperature,Stagnation point,Thin film,Mathematics
Journal
Volume
Issue
ISSN
26
6
0893-9659
Citations 
PageRank 
References 
0
0.34
1
Authors
2
Name
Order
Citations
PageRank
C. M. Cuesta143.38
J. J. L. Velázquez2138.41