RESEARCH PAPERS: Additional Technical Papers

Drop-Size Distributions of Newtonian and Bingham Liquid Sprays Produced by Fan-Jet Pressure Nozzles With and Without the Preorifice

[+] Author and Article Information
William S. Janna

Mechanical Engineering Dept., The University of New Orleans, New Orleans, La. 70122

James E. A. John

Mechanical Engineering, The Ohio State University, Columbus, Ohio

J. Eng. Ind 103(4), 402-408 (Nov 01, 1981) (7 pages) doi:10.1115/1.3184504 History: Received October 30, 1980; Revised April 05, 1981; Online July 30, 2009


Measurements were made of the drop-size distributions of water and of paint sprays produced by fan-jet pressure nozzles, operating in the pressure range 900 to nearly 3000 psi (6200–20,680 kPa). A collection device was constructed and droplets were captured on soot-coated and on plain microscope slides. Subsequent sizing of the impacted particles with a microscope yielded drop-size distribution data of accumulated volume percent versus diameter. Data were gathered of water and of paint sprays produced by a fan-jet pressure nozzle-preorifice combination. The effect of the preorifice on drop-size distribution was evaluated.

Copyright © 1981 by ASME
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