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RESEARCH PAPERS

Diagnostic Measurements of Fuel Spray Dispersion

[+] Author and Article Information
J. M. Tishkoff, D. C. Hammond

Fluid Dynamics Department, General Motors Research Laboratories, Warren, Mich. 48090-9055

A. R. Chraplyvy

Physics Department, General Motors Research Laboratories, Warren, Mich. 48090-9055

J. Fluids Eng 104(3), 313-317 (Sep 01, 1982) (5 pages) doi:10.1115/1.3241839 History: Received July 23, 1980; Online October 26, 2009

Abstract

Plume shape, vaporization, droplet-size distribution, and number density of a solid-cone fuel spray were studied with both conventional and novel measurement techniques. Minor differences in spray plume shape were observed by measurements with photography, pulsed laser shadowgraphy, and in-line infrared spectroscopy. Laser Mie scattering showed the dispersion of small numbers of droplets beyond spray boundaries as determined by other measurements. A new optical method for nonintrusive, local, time-averaged measurement of vapor concentration, droplet-size distribution and number density within an axisymmetric spray is introduced. For the spray studied this method showed that vapor is confined to the spray plume and that vapor concentration and the concentration of small-diameter droplets exhibit analogous behavior.

Copyright © 1982 by ASME
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