Abstract
We develop a linear stability theory for a thin liquid film on a structured solid surface with periodic grooves filled by a gas. The main mechanism driving the instability is due to the London-van der Waals disjoining pressure. The grooves are shown to have a destabilizing effect on the film. The results of linear stability analysis are compared with numerical simulations based on the strongly nonlinear equation for film thickness.
| Original language | English |
|---|---|
| Pages (from-to) | 33-37 |
| Number of pages | 5 |
| Journal | Microgravity Science and Technology |
| Volume | 24 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 1 Jan 2012 |
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Keywords
- Disjoining pressure
- Film rupture
- Structured surface
ASJC Scopus subject areas
- Modelling and Simulation
- Engineering(all)
- Physics and Astronomy(all)
- Applied Mathematics
Cite this
Stability of a liquid film on a surface with periodic array of gas-filled grooves. / Ajaev, Vladimir Sergeevich; Gatapova, Elizaveta Ya; Kabov, Oleg A.
In: Microgravity Science and Technology, Vol. 24, No. 1, 01.01.2012, p. 33-37.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Stability of a liquid film on a surface with periodic array of gas-filled grooves
AU - Ajaev, Vladimir Sergeevich
AU - Gatapova, Elizaveta Ya
AU - Kabov, Oleg A.
PY - 2012/1/1
Y1 - 2012/1/1
N2 - We develop a linear stability theory for a thin liquid film on a structured solid surface with periodic grooves filled by a gas. The main mechanism driving the instability is due to the London-van der Waals disjoining pressure. The grooves are shown to have a destabilizing effect on the film. The results of linear stability analysis are compared with numerical simulations based on the strongly nonlinear equation for film thickness.
AB - We develop a linear stability theory for a thin liquid film on a structured solid surface with periodic grooves filled by a gas. The main mechanism driving the instability is due to the London-van der Waals disjoining pressure. The grooves are shown to have a destabilizing effect on the film. The results of linear stability analysis are compared with numerical simulations based on the strongly nonlinear equation for film thickness.
KW - Disjoining pressure
KW - Film rupture
KW - Structured surface
UR - http://www.scopus.com/inward/record.url?scp=84861623586&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84861623586&partnerID=8YFLogxK
U2 - 10.1007/s12217-011-9288-z
DO - 10.1007/s12217-011-9288-z
M3 - Article
VL - 24
SP - 33
EP - 37
JO - Microgravity Science and Technology
JF - Microgravity Science and Technology
SN - 0938-0108
IS - 1
ER -