Studies on the Atomization of Water Droplets

Abstract

The experimental studies reported in this paper were undertaken to investigate the relationship between drop-size distribution and the principal factors operating a centrifugal disk atomizer. Discs used are of diameter from 6cm to 14cm., and are rotated at the rate of less than 9000 rev./min.
Results obtained are summarized as follows:
(1) The average drop-size on the surface are given in our experiments:
(2) The maximam drop-sizes are expressed experimentally:
(3) In most of our experiments the distribution of droplets were remarkably affected by the rate of rotation. With the increase of spinning speed, the distribution types tended to give single modal, while when discs were operated at the rate of less than 6000rev/min., distribution types were found to be multi-modal. Log-Probability distribution mostly proved satisfactory in single modal types, as shown in the resultant data.
In the above equation:
a: Average drop-size based on the surface cm.
d: Maximum drop-size cm.
D: Diameter of disk cm.
N: Rate of rotation rev./min.
q: Feed rate of water c.c./sec.