Modelling the behaviour of the wetting front in non-standard forced foam drainage scenarios

► The dynamics of the wetting front in forced foam drainage are studied numerically. ► The model benefits from the use of adaptive, unstructured finite element meshing. ► The horizontal displacement of the wave also obeys a power law for localised cases. ► Forced drainage in non-rectangular containers is simulated for the first time. ► Different wetting front regions in non-rectangular cases also adjust to a power law.