Steady two-layer gravity-driven thin-film flow

2008 ◽  
Vol 77 (5) ◽  
Author(s):  
Kamran Alba ◽  
Roger E. Khayat ◽  
Ramanjit S. Pandher
Keyword(s):  
Thin Film ◽  
Film Flow ◽  
Thin Film Flow ◽  
Gravity Driven

Stability of gravity-driven thin-film flow in the presence of an adjacent gas phase

2021 ◽  
Vol 135 ◽  
pp. 103443
Author(s):  
R. Kushnir ◽  
I. Barmak ◽  
A. Ullmann ◽  
N. Brauner
Keyword(s):  
Thin Film ◽  
Gas Phase ◽  
Film Flow ◽  
Thin Film Flow ◽  
Gravity Driven

scholarly journals Thin-film flow in helically-wound rectangular channels of arbitrary torsion and curvature

2014 ◽  
Vol 764 ◽  
pp. 76-94 ◽  
Author(s):  
D. J. Arnold ◽  
Y. M. Stokes ◽  
J. E. F. Green
Keyword(s):  
Thin Film ◽  
Film Flow ◽  
Rectangular Cross Section ◽  
Steady State Solution ◽  
Surface Shape ◽  
Thin Film Flow ◽  
Large Channel ◽  
Gravity Driven ◽  
Curvature And Torsion ◽  
Arbitrary Curvature

AbstractLaminar helically-symmetric gravity-driven thin-film flow down a helically-wound channel of rectangular cross-section is considered. We extend the work of Stokes et al. (Phys. Fluids, vol. 25 (8), 2013, 083103) and Lee et al. (Phys. Fluids, vol. 26 (4), 2014, 043302) to channels with arbitrary curvature and torsion or, equivalently, arbitrary curvature and slope. We use a non-orthogonal coordinate system and, remarkably, find an exact steady-state solution. We find that the free-surface shape and flow have a complicated dependence on the curvature, slope and flux down the channel. Moderate to large channel slope has a significant effect on the flow in the region of the channel near the inside wall, particularly when the curvature of the channel is large. This work has application to flow in static spiral particle separators used in mineral processing.

scholarly journals Gravity-driven thin film flow of an ellis fluid

2013 ◽  
Vol 202 ◽  
pp. 88-98 ◽  
Author(s):  
Vitaly O. Kheyfets ◽  
Sarah L. Kieweg
Keyword(s):  
Thin Film ◽  
Film Flow ◽  
Thin Film Flow ◽  
Gravity Driven
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