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Chemical Engineering Science 63 (2008) 19141928 www.elsevier.com/locate/ces
 

Summary: Chemical Engineering Science 63 (2008) 1914­1928
www.elsevier.com/locate/ces
Model and experimental visualizations of the interaction of a bubble with an
inclined wall
B. Podvina,
, S. Khojab
, F. Moragac,1
, D. Attingerb
aLIMSI-CNRS UPR 3251, Université Paris-Sud, France
bDepartment of Mechanical Engineering, Columbia University, USA
cRensselaer Polytechnic Institute, Troy, USA
Received 31 May 2007; received in revised form 10 December 2007; accepted 14 December 2007
Available online 23 December 2007
Abstract
In this paper we derive a model based on lubrication theory to describe the interaction of a bubble with an inclined wall. The model is an
extension of the model derived by Klaseboer, Chevailier, Mate, Masbernat, Gourdon [2001. Model and experiments of a drop impinging on
an immersed wall. Physics of Fluids 13(1), 45­57.] and Moraga, Drew, Larreteguy, Lahey [2005. Modeling wall-induced forces on bubbles
for inclined walls. Multiphase Science and Technology 17(4), 483­505.] in the case of a horizontal wall. We consider bubbles of diameter
1­2 mm, which corresponds to high Reynolds numbers Re O(1 0 0), and moderate deformation effects (with a Weber number of O(1)).
Predictions of the model are compared with experimental visualizations of air bubbles rising in water toward an inclined wall. The dynamical

  

Source: Attinger, Daniel - Department of Mechanical Engineering, Columbia University

 

Collections: Engineering