Osmotic pressure and structures of monodisperse ordered foam

We present an experimental and numerical study of the osmotic pressure in monodisperse ordered foams as a function of the liquid fraction. The data are compared to previous results obtained for disordered monodisperse and polydisperse concentrated emulsions. Moreover, we report a quantitative investigation of the transition from a bubble close packing to a bee structure as a function of the liquid volume fraction. These findings are discussed in the context of theoretical models that have been proposed in the literature.