The Correlation of Drop-Size Distributions in Fuel Nozzle Sprays—Part II: The Drop-Size/Number Distribution

[+] Author and Article Information
H. C. Simmons

Accessories Division, Parker Hannifin Corp., Cleveland, Ohio

J. Eng. Power 99(3), 315-319 (Jul 01, 1977) (5 pages) doi:10.1115/1.3446489 History: Received July 30, 1976; Online July 14, 2010


Using the data given in a companion paper by this author on drop-size/volume-fraction distributions in fuel nozzle sprays it is shown that drop-number distributions can be correlated on a nondimensional basis by cutting off data at the extreme tails of the volume distribution so that 99.74 percent of the spray is evaluated. Equations are developed for calculating both volume-fraction and number distributions given only the mass median or Sauter mean diameter for a spray. A theoretical model of the atomization process is proposed which is in good agreement with observed data. It is shown also that the accuracy of determining SMD is very little affected by lack of data at the ends of the drop-size range.

Copyright © 1977 by ASME
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