Experiments in Liquid Atomization by Air Streams

Water is atomized by a high-velocity air stream using various methods of injection and water nozzle positions. Low water volume rates and velocities, air velocities up to acoustic, and ratios of air volume to water volume rates up to 25 000 were utilized. Results indicate water injection into region of maximum velocity, parallel to the air flow gives highest degree of atomization under similar conditions. Comparison is made with the Tanasawa-Nukiyama correlation and discrepancies in droplet sizes at high air velocities are found and discussed.