Applications and extensions of the Z-cone model for the energy of a foam

Abstract We present an extended analysis of the Z -cone model for the estimation of the energy of an ordered foam. In particular, we show that it results in an interaction potential with an exponent consistent with those previously reported, as well as an equilibrium liquid fraction profile under gravity consistent with those experimentally observed in ordered foams. We also extend the model to deal with curved interfaces, as a first step to modelling ordered bidisperse foams.