Pneumatic Atomization in an Annular Flow Nozzle

870611

02/01/1987

Event
SAE International Congress and Exposition
Authors Abstract
Content
A simple geometry pneumatic atomizer which could be used on internal combustion engine was tested with water as the working fluid. The pneumatic atomizer consists of a cylindrical chamber with an orifice plate at the outlet end. Liquid flows down the chamber walls and onto the nozzle orifice plate as a film. Air flows down the center of the chamber. The interaction of the air and water, which occurs at the orifice, atomizes the water. Large droplets form near the nozzle orifice and break up as they go down stream. Variations in the droplet size occurred in the spray. When geometry and flow rates were varied, changes which decreased the water film thickness or increased the air velocity at the nozzle orifice yielded smaller droplets in the spray. Droplet size data was measured by Malvern Laser Particle Sizer.
Meta TagsDetails
DOI
https://doi.org/10.4271/870611
Pages
12
Citation
Miller, D., and Evers, L., "Pneumatic Atomization in an Annular Flow Nozzle," SAE Technical Paper 870611, 1987, https://doi.org/10.4271/870611.
Additional Details
Publisher
Published
Feb 1, 1987
Product Code
870611
Content Type
Technical Paper
Language
English