TITLE

Instability and dynamics of thin slipping films

AUTHOR(S)
Sharma, Ashutosh; Kargupta, Kajari
PUB. DATE
October 2003
SOURCE
Applied Physics Letters;10/27/2003, Vol. 83 Issue 17, p3549
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The linear stability analysis of the full Navier–Stokes equations shows that the surface instability and dynamics of thin liquid films are profoundly altered by the presence of slippage on the substrate. For example, the exponents for the length scale (λ[sub m]∝h[sub 0][sup n]; h[sub 0] is film thickness) and time scale of instability (t[sub r]∝h[sub 0][sup m]) change nonmonotonically with slippage [for van der Waals force induced instability, n∈(1.25,2), m∈(3,6)]. Slippage always encourages faster rupture and can greatly reduce the number density of holes for moderate to strong slip. Thus, any interpretation of thin film experiments, including determination of intermolecular forces from the length and time scales, needs to account for the possibility of slippage. © 2003 American Institute of Physics.
ACCESSION #
11123009

 

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