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Viscous force exerted on a foam at a solid boundary : influence of the liquid fraction and of the bubble size.

Abstract : We study experimentally the pressure drop needed to push a bubble train in a millimetric channel, as a function of the velocity. For dry liquid foams, the influence of the amount of liquid and of the bubble size is pointed out and we predict theoretically that this influence is closely related to the power law obtained for the force/velocity relation. This model is in fair agreement with our experimental data and provides a new interpretation of previous results.
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https://hal.archives-ouvertes.fr/hal-00096588
Contributor : Isabelle Cantat Connect in order to contact the contributor
Submitted on : Tuesday, September 19, 2006 - 4:41:15 PM
Last modification on : Friday, February 12, 2021 - 10:58:07 AM
Long-term archiving on: : Monday, April 5, 2010 - 11:45:30 PM

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Emmanuel Terriac, Janine Etrillard, Isabelle Cantat. Viscous force exerted on a foam at a solid boundary : influence of the liquid fraction and of the bubble size.. EPL - Europhysics Letters, European Physical Society/EDP Sciences/Società Italiana di Fisica/IOP Publishing, 2006, 74, pp.909. ⟨hal-00096588⟩

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