Study of a laminar falling film flowing over a wavy wall column: Part II. Experimental validation of hydrodynamic model - Archive ouverte HAL Access content directly
Journal Articles International Journal of Heat and Mass Transfer Year : 2001

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

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.

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Dates and versions

hal-03604727 , version 1 (10-03-2022)

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Stéphane Negny, Michel Meyer, Michel Prevost. Study of a laminar falling film flowing over a wavy wall column: Part II. Experimental validation of hydrodynamic model. International Journal of Heat and Mass Transfer, 2001, 4 (11), pp.2147 -2154. ⟨10.1016/S0017-9310(00)00237-4⟩. ⟨hal-03604727⟩
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