Film boiling in a forced-convection boundary-layer flow

An analysis has been made to determine the heat transfer and friction characteristics in forced-connection film boiling on a flat plate. It is shown that the resulting two-phase flow problem can be formulated exactly within the framework of laminar boundary-layer theory. Solutions covering the parameter range of practical interest have been obtained by a combination analytical-numerical method. Heat-transfer and skin-friction results are presented both graphically and as simple, closed form analytical expressions. Relative to the case of pure liquid flow, the skin friction is substantially reduced due to film boiling. The heat transfer is found to increase as (ΔT)^1/2, a much smaller dependence than in other convection phenomena.