METHOD OF DETERMINING THE DROPLET SIZE DISTRIBUTION IN THE ATOMIZATION OF LIQUIDS
FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OH
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A laboratory method was developed for determining the droplet size distribution produced by atomizers. The atomizer is placed in a tube in which air is flowing at a velocity of 10 msec. The droplets flow downstream around a rod which has one flat surface covered with soot and a thin layer of magnesium. The rod is enclosed in a cylindrical shutter which can be rapidly opened to expose the soot-magnesium surface to the droplets which upon impact leave traces which can be studied microscopically. The instrument was tested with glycerine- water mixtures and an aerosol generator. The droplet distributions obtained were in good agreement with measurements made by two other methods.
- Test Facilities, Equipment and Methods