Theoretical and Experimental Studies of Droplet Evaporation in High-Temperature Air

This paper is deal with the evaporation rules of single droplet in a "hot" ambient environment. equipment is designed and CCD high-speed camera is used to attain the evaporation rules of suspended droplet with the diameter in range of 1.6 to 1.8mm in the high- temperature air. At the same time, a simplified evaporation models is developed for numerical simulation based on the so-called 'film theory', and the comparison of vaporization history indicates that, traditional D-2 -law is not followed by drop evaporation in "hot" air and simplified evaporation models are in close agreement with experiments; The evaporation of a single droplet provides certain foundation for the further evaporation mechanism research with model of smaller droplet in high-temperature air.