Spray characteristics of a spill-return airblast atomizerThe spray characteristics of a spill-return airblast atomizer are examined using water as the working fluid. Measurements of mean drop size, drop size distribution, spray cone angle, and circumferential liquid distinction, are carried out over wide ranges of liquid injection pressures and atomizing air velocities. Generally, it is found that an increase in nozzle bypass ratio worsens the atomization quality and widens the spray cone angle. Increase in airblast air velocity may improve or impair atomization quality depending on whether it increases or decreases the relative velocity between the liquid and the surrounding air. Airblast air can also be used to modify the change in spray cone angle that normally accompanies a change in bypass ratio.
Document ID
19880066927
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Dai, X. F. (Purdue Univ. West Lafayette, IN, United States)
Lefebvre, A. H. (Purdue University West Lafayette, IN, United States)
Rollbuhler, J. (NASA Lewis Research Center Cleveland, OH, United States)