Film Drainage between Colliding Drops at Constant Approach Velocity: Experiments and Modeling

Film Drainage between Colliding Drops at Constant Approach Velocity: Experiments and Modeling

Experiments and modeling of the drainage of the thin liquid film between two deformable spherical drops approaching each other at constant velocity in another liquid are being presented. Two numerical models based on the lubrication theory have been developed considering the cases of immobile or mob...

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Veröffentlicht in:Journal of colloid and interface science 2000-09, Vol.229 (1), p.274-285
Hauptverfasser: Klaseboer, E., Chevaillier, J.Ph, Gourdon, C., Masbernat, O.
Format: Artikel
Sprache:eng
Schlagworte:
Chemistry
drainage
Exact sciences and technology
Gas-liquid interface and liquid-liquid interface
General and physical chemistry
Surface physical chemistry
thin liquid film
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container_end_page 285
container_issue 1
container_start_page 274
container_title Journal of colloid and interface science
container_volume 229
creator Klaseboer, E.
Chevaillier, J.Ph
Gourdon, C.
Masbernat, O.
description Experiments and modeling of the drainage of the thin liquid film between two deformable spherical drops approaching each other at constant velocity in another liquid are being presented. Two numerical models based on the lubrication theory have been developed considering the cases of immobile or mobile drop interfaces. The absolute film thickness and the thinning rate have been measured using laser interferometry for a wide range of capillary numbers. In all studied cases, the model with immobile interfaces was found to give the best predictions of the experimental time evolution of the film thickness and radial expansion. These results made it possible to derive a typical time scale of the drainage process.
doi_str_mv 10.1006/jcis.2000.6987
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subjects Chemistry
drainage
Exact sciences and technology
Gas-liquid interface and liquid-liquid interface
General and physical chemistry
Surface physical chemistry
thin liquid film
title Film Drainage between Colliding Drops at Constant Approach Velocity: Experiments and Modeling
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