Lamella Division in a Foam Flowing through a Two-Dimensional Porous Medium: A Model Fragmentation Process - Archive ouverte HAL Access content directly
Journal Articles Physical Review Letters Year : 2017

Lamella Division in a Foam Flowing through a Two-Dimensional Porous Medium: A Model Fragmentation Process

Yves Méheust
Isabelle Cantat
Benjamin Dollet

Abstract

We flow a 2D foam through a model 2D porous medium and study experimentally and numericallyhow the bubble size distribution evolves along the medium. The dominant mechanism of bubblecreation is a fragmentation process occurring when bubbles pinched against obstacles are split in twosmaller bubbles. We infer the statistics of these individual and local fragmentation events from theexperimental data and propose a fragmentation equation to relate that statistics to the evolutionof the global size distribution. The predicted evolution shows very good agreement with directexperimental measurements of the bubble size distribution.
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Dates and versions

hal-01483090 , version 1 (04-03-2017)

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Baudouin Géraud, Yves Méheust, Isabelle Cantat, Benjamin Dollet. Lamella Division in a Foam Flowing through a Two-Dimensional Porous Medium: A Model Fragmentation Process. Physical Review Letters, 2017, 118 (9), pp.098003. ⟨10.1103/PhysRevLett.118.098003⟩. ⟨hal-01483090⟩
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