✦ LIBER ✦

Transient flow and heat transfer phenomena in inclined wavy films

✍ Scribed by Katerina Serifi; Nikolaos A Malamataris; Vasilis Bontozoglou

Publisher: Elsevier Science
Year: 2004
Tongue: French
Weight: 307 KB
Volume: 43
Category: Article
ISSN: 1290-0729
DOI: 10.1016/j.ijthermalsci.2004.02.016

No coin nor oath required. For personal study only.

✦ Synopsis

A finite-element numerical scheme is used to study rigorously the flow of an inclined liquid film and the heat transfer from the constanttemperature wall. Regular inlet disturbances are predicted to evolve into periodic or solitary waves depending on the frequency of the forcing. At very low disturbance frequencies parasitic crests appear and the regularity of the wavetrain is lost. The effect of a solitary wavetrain on heat transfer from the wall is studied, and it is predicted that a stationary temperature distribution develops with periodic flux variation that follows the waves. The thinning of the substrate between successive humps combines with the effect of convection at the crest and tail of the solitary humps to produce heat transfer enhancement significantly above the conduction limit.

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