The characteristics of sprays produced by air induction nozzles

This paper reports on measurements of the characteristics of sprays produced by five commercially-available air induction nozzles in terms of the flow rate of air into each nozzle, droplet size distributions and droplet velocities and considers the implications for the quantity of included air in spray droplets and the potential risk of spray drift. Results suggest, for a given nozzle size and pressure, sprays with a larger droplet size have a greater flow of air into the nozzle and a larger percentage of included air in droplets. The quantity of included air in spray droplets reduces as nozzle size increases. The risk of spray drift is strongly dependent on droplet size.