In a brief note, Nelson and Wood (1989) derived the fully developed vapour mass fraction, velocity, pressure and temperature fields for an inclined plane parallel-plate duct. They considered only low mass transfer rates (). Their result is a simple extension of Aung's (1972) for the analogous single fluid heat transfer problem. Their result is extended in chapter 4 to include the effects of transpiration, interdiffusion and the variability of the mixture specific heat.
They also considered constant flux conditions, but only obtained an exact result for , for which the problem is identical to that for a pure fluid. This conclusion was also reached by Trevisan and Bejan (1987; §3.3.7), whose work they appear to have been unaware of.