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We measure the permeability of a fluidized bed of monodispersed bubbles withsoap solution characteristic of mobile and non-mobile interfaces. Theseexperimental data extend the permeability curves previously published for foamin the dry limit. In the wet limit, these data join the permeability curves ofa hard sphere suspension at porosity equal to 0.4 and 0.6 in the cases ofmobile and non-mobile interfaces respectively. We show that the model ofpermeability proposed by Kozeny and Carman and originally validated for packedbeds of spheres (with porosity around 0.4) can be successfully applied with noadjustable parameters to liquid fractions from 0.001 up to 0.85 for systemsmade of monodisperse and deformable entities with non-mobile interfaces.

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