Journal ArticleDOI
Viscous liquid film flows over a periodic surface
TLDR
In this article, a theoretical analysis of a viscous liquid film flowing down a vertical one-dimensional periodic surface is performed based on both Navier-Stokes and integral equations and performed over a wide range of Reynolds number and surface geometry characteristics taking into account viscosity, inertia and surface tension.About:
This article is published in International Journal of Multiphase Flow.The article was published on 1999-11-01. It has received 92 citations till now. The article focuses on the topics: Capillary number & Free surface.read more
Citations
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Journal ArticleDOI
Dynamics and stability of thin liquid films
Richard V. Craster,Omar Matar +1 more
TL;DR: The dynamics and stability of thin liquid films have fascinated scientists over many decades: the observations of regular wave patterns in film flows along a windowpane or along guttering, the patterning of dewetting droplets, and the fingering of viscous flows down a slope are all examples that are familiar in daily life.
Journal ArticleDOI
Air–water two-phase flow and heat transfer in a plate heat exchanger
TL;DR: In this paper, a plate heat exchanger is tested under two-phase flow conditions by using an air/water mixture as the cold stream Visual observations recorded by a high-speed video camera lead to the construction of a flow regime map.
Journal ArticleDOI
Experiments on laminar film flow along a periodic wall
TL;DR: In this article, a fluorescence imaging method is used to capture the evolution of film height in space and time with accuracy of a few microns, and the steady flow is found to exhibit a statically deformed free surface, as predicted by previous asymptotic and numerical studies.
Journal ArticleDOI
Mass transfer and liquid hold-up determination in structured packing by CFD
TL;DR: In this paper, a volume of fluid method is used to capture the gas-liquid interface motion and the liquid hold-up in structured packing geometry is investigated using numerical simulations of two-dimensional co-current gas- liquid flow on structured packing with interfacial mass transfer.
Journal ArticleDOI
Thin film flow over structured packings at moderate Reynolds numbers
TL;DR: In this paper, a model describing the dynamic evolution of waves on laminar falling wavy films at low to moderate Reynolds numbers (Re<30) over corrugated surfaces is presented.
References
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Book ChapterDOI
The Flow of Liquids in Thin Films
TL;DR: In this article, the Kapitsa theory for wavy film flow appears to apply over only a very limited part of the total wavy flow regime, and it is shown that it is possible to predict quite accurately the flow behavior in the smooth laminar flow regime of the film; unfortunately, this flow regime is not of great practical importance.
Journal ArticleDOI
The flow of a liquid film along a periodic wall
TL;DR: In this article, the creeping flow of a liquid film along an inclined periodic wall of arbitrary geometry is considered, and the boundary-integral method for Stokes flow is extended to two-dimensional flows involving free surfaces.
Journal ArticleDOI
Experimental characterization of viscous film flows over complex surfaces
L. Zhao,R.L. Cerro +1 more
TL;DR: In this paper, an experimental program was carried out in order to characterize the mechanics of viscous flows over model complex surfaces, where film thickness profiles, streamline patterns and free-surface velocities were measured for a variety of surface shapes and fluids.
Journal ArticleDOI
Liquid film flowing slowly down a wavy incline
TL;DR: In this article, a viscous lamina of given mean thickness flows down a wavy incline and the velocity profiles and the free surface profile are determined, in a complicated manner, on the surface tension and the wave length and orientation of the wavy striations.