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Study of a laminar falling film flowing over a wavy wall column: Part II. Experimental validation of hydrodynamic model

Negny, Stéphane and Meyer, Michel and Prevost, Michel Study of a laminar falling film flowing over a wavy wall column: Part II. Experimental validation of hydrodynamic model. (2001) International Journal of Heat and Mass Transfer, vol. 4 (n° 11). 2147 -2154. ISSN 0017-9310

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Official URL: http://dx.doi.org/10.1016/S0017-9310(00)00237-4

Abstract

The interface position of a film flowing over a wavy wall column is experimentally studied by an optical method composed of a charge coupled device (CCD) video camera. The results are compared with theoretical calculations and show a good agreement between results for both the film thickness and the vortex position. However, there exist some discrepancies because the interface is travelled by waves not accounted for in the mathematical model as it is supposed to be flat. Some characteristics of the waves are experimentally noted. Furthermore, the in¯uence of the viscosity on the film thickness is established as well.

Item Type:Article
Additional Information:Thanks to Elsevier editor. The definitive version is available at http://www.sciencedirect.com The original PDF of the article can be found at International Journal of Heat and Mass Transfer website:http://www.sciencedirect.com/science/journal/00179310
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution: Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
Université de Toulouse > Université Paul Sabatier-Toulouse III - UPS
French research institutions > Centre National de la Recherche Scientifique - CNRS
Laboratory name:
Laboratoire de Génie Chimique - LGC (Toulouse, France) - Réaction, mélange & séparation (RMS)
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Deposited By:Hélène Dubernard

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