Nano Archive

Interfacial phase change effects on the stability characteristics of thin viscoelastic liquid film down a vertical wall

Uma, B. and Usha, R. (2004) Interfacial phase change effects on the stability characteristics of thin viscoelastic liquid film down a vertical wall. International Journal of Engineering Science, 42 (13-14). pp. 1381-1406. ISSN 0020-7225

Full text is not hosted in this archive but may be available via the Official URL, or by requesting a copy from the corresponding author.

Official URL: http://www.sciencedirect.com/science?_ob=ArticleUR...

Abstract

Weakly nonlinear stability analysis of thin viscoelastic liquid film flowing down a vertical wall including the phase change effects at the interface has been investigated. A normal mode approach and the method of multiple scales are employed to carry out the linear stability solution and the nonlinear stability solution for the film flow system. The results show that both the supercritical stability and subcritical instability are possible for condensate, evaporating and isothermal viscoelastic film flow system. The stability characteristics of the viscoelastic film flow are strongly influenced by the phase change parameter. The condensate (evaporating) viscoelastic film is more stable (unstable) than the isothermal viscoelastic film and the effect of viscoelasticity is to destabilize the film flowing down a vertical wall.

Item Type:Article
Subjects:Physical Science > Nanophysics
Physical Science > Nano objects
Material Science > Nanochemistry
Material Science > Nanostructured materials
Divisions:Faculty of Engineering, Science and Mathematics > School of Physics
Faculty of Engineering, Science and Mathematics > School of Chemistry
ID Code:6915
Deposited By:JNCASR
Deposited On:01 Sep 2009 10:48
Last Modified:01 Sep 2009 10:48

Repository Staff Only: item control page