Film condensation along a frustum of a cone in a porous medium

The problem of steady film condensation is considered for the case of a frustum of a cone without transverse curvature, using Keller's (1970, 1971) box method to numerically solve the governing equations. Heat transfer is noted to be strongly dependent on the subcooling parameter when its value is comparatively small. The thickness of the film increases with the subcooling parameter, but decreases with the streamwise distance.