Dispersion and settling characteristics of evaporating droplets in ventilated room

In this paper, through CFD simulations, movement and evaporation of small droplets in the room air are investigated. The authors present a modified drift-flux model. Their numerical simulations reveal the characterization of the distribution of the large evaporating droplets in the ventilated room air : a combination of settling feature when droplets are first generated and released, and dispersion feature after the droplets are evaporated to be either very fine or become droplet nuclei.
According to the diameter of droplets , the dispersion or settling feature is dominant.