Thin film limit and film rupture of the visco--capillary gravity--driven channel flow

2003 ◽  
Vol 54 (3) ◽  
pp. 517-531 ◽  
Author(s):  
M. Scholle ◽  
N. Aksel
Keyword(s):  
Thin Film ◽  
Channel Flow ◽  
Film Rupture ◽  
Gravity Driven

scholarly journals Stokes theory of thin-film rupture

2020 ◽  
Vol 5 (1) ◽  
Author(s):  
D. Moreno-Boza ◽  
A. Martínez-Calvo ◽  
A. Sevilla
Keyword(s):  
Thin Film ◽  
Film Rupture

Thin film rupture and polymer flow

2008 ◽  
Vol 10 (34) ◽  
pp. 5177 ◽  
Author(s):  
Ralf Blossey
Keyword(s):  
Thin Film ◽  
Film Rupture ◽  
Polymer Flow

Rupture and Reformation of Ultra-Thin Surface Films

2010 ◽  
Author(s):  
William W. F. Chong ◽  
Mircea Teodorescu ◽  
Homer Rahnejat
Keyword(s):  
Thin Film ◽  
Data Storage ◽  
Surface Film ◽  
Hard Disk Drives ◽  
Hard Disk ◽  
Surface Films ◽  
Disk Drives ◽  
Film Rupture ◽  
Near Surface ◽  
Ultra Thin Film

In lubricated contact conjunctions film ruptures close to the exit boundary. This significantly affects the load carrying capacity and can lead to direct surface interactions. Nano-scale films (several molecular diameters of the lubricant) are no exception, a fact that has been observed using ellipsometry studies for ultra-thin film conjunctions representative for high storage capacity hard disk drives. Immediately beyond the film rupture an area of cavitation occurs and the continuity of flow condition is breached. It has been shown that for molecularly smooth surfaces solvation effect becomes dominant. This means that the contact exit is subject to discrete drainage of lubricant and may be devoid of a sufficient lubricant for film reformation to occur. This can be a stumbling block in an increasing quest to increase the data storage density of hard disk drives. Wear can become a problem as well as non-uniformity of free surface film at the inlet meniscus. It has been noted that peaks of lubricant can gather in some places, a phenomenon referred to as lubricant mogul. These localized piles of lubricant can exceed the nominally aimed for lubricant film thickness necessary for a given data storage level. This paper carries out an in-depth prediction of ultra thin film lubricant behavior through the contact. Hydrodynamic as well as near surface effects and intermolecular interactions responsible for the supply, formation, cavitation and reformation of thin films in the slider-disk conjunction have been considered.

Thin film composite structured Janus membrane for fast gravity-driven separation of a trace of blood

2020 ◽  
pp. 118853
Author(s):  
Xingzhen Zhang ◽  
Yuzhang Zhu ◽  
Wangxi Fang ◽  
Liangliang Gui ◽  
Jingya Zhang ◽  
...  
Keyword(s):  
Thin Film ◽  
Film Composite ◽  
Thin Film Composite ◽  
Gravity Driven

Mucin thin film as a model of the tear film rupture

1984 ◽  
Vol 98 (2) ◽  
pp. 319-328 ◽  
Author(s):  
Jacques Emile Proust ◽  
Slavka Dorsimova Tchaliovska ◽  
Lisbeth Ter-Minassian-Saraga
Keyword(s):  
Thin Film ◽  
Tear Film ◽  
Film Rupture

Dynamics of three-dimensional thin film rupture

2000 ◽  
Vol 147 (1-2) ◽  
pp. 155-176 ◽  
Author(s):  
Thomas P. Witelski ◽  
Andrew J. Bernoff
Keyword(s):  
Thin Film ◽  
Three Dimensional ◽  
Film Rupture

Flow and stability of a gravity-driven thin film over a locally heated porous wall

2020 ◽  
Vol 32 (9) ◽  
pp. 092106
Author(s):  
Tara Chand Kumawat ◽  
Naveen Tiwari
Keyword(s):  
Thin Film ◽  
Porous Wall ◽  
Gravity Driven
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