Permeability of a bubble assembly: From the very dry to the wet limit

Details Permeability of a bubble assembly: From the very dry to the wet limit Permeability of a bubble assembly: From the very dry to the wet limit

2009-10-12

arxiv.org/abs/0910.2143v1

Physics

Condensed Matter

Soft Condensed Matter

Scientific paper

We measure the permeability of a fluidized bed of monodispersed bubbles with soap solution characteristic of mobile and non-mobile interfaces. These experimental data extend the permeability curves previously published for foam in the dry limit. In the wet limit, these data join the permeability curves of a hard sphere suspension at porosity equal to 0.4 and 0.6 in the cases of mobile and non-mobile interfaces respectively. We show that the model of permeability proposed by Kozeny and Carman and originally validated for packed beds of spheres (with porosity around 0.4) can be successfully applied with no adjustable parameters to liquid fractions from 0.001 up to 0.85 for systems made of monodisperse and deformable entities with non-mobile interfaces.

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