Heat transfer to binary mist flow

The forced convection laminar boundary layer involving a two component gas with dispersed liquid particles over a dry isothermal surface is studied analytically and experimentally. The effect of particle presence and evaporation on boundary layer structure, wall heat transfer, and wall shear stress is determined for the limiting case of dilute concentrations of small particles having large evaporation rate. Solutions include distributions of velocity, temperature, vapor and liquid throughout the boundary layer and the extent of the region near the wall free of particles due to complete evaporation. It is shown that for increasing free stream liquid content the increase in wall heat transfer is substantial while that of wall shear is negligible. Theoretical results correlate wall heat transfer measurements for an air/water vapor, water particle mist flow.