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Abstract
Numerical results are presented for convective heat transfer of a laminar mist flow in the thermal entrance region of a concentric annulus with a heated core and an insulated outer wall. Both constant temperature and constant heat flux on the inner wall are considered. The saturated droplets in the mist flow are considered as equivalent heat sinks distributed in the superheated vapor stream. Calculations are performed for variations of droplet size, mean vapor velocity, droplet number density, and the local Nusselt number in the streamwise direction until the single-phase fully developed condition is reached. The effects of different governing parameters on heat transfer characteristics are studied.