Study of a laminar falling film flowing over a wavy wall column: Part II. Experimental validation of hydrodynamic model - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue International Journal of Heat and Mass Transfer Année : 2001

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

Résumé

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.

Mots clés

Fichier principal
Vignette du fichier
Negny_1325.pdf (214.11 Ko) Télécharger le fichier
Origine Fichiers produits par l'(les) auteur(s)

Dates et versions

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

Identifiants

Citer

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⟩
20 Consultations
18 Téléchargements

Altmetric

Partager

Gmail Mastodon Facebook X LinkedIn More