Droplet Diameter and Size Distribution of JP-4 Fuel Injected into a Subsonic Airstream

Abstract

A test program was conducted to determine the size and distribution of JP-4 fuel droplets when fuel was dispersed at a constant fuel nozzle exit velocity into a subsonic airstream. Testing was conducted at free-stream flight velocities ranging from 200 to 400 knots at altitudes ranging from 12,000 to 25, 000 feet with flow rates of approximately 13, 75, and 290 1bm/min. Holograms of the fuel droplets were taken 18 feet downstream of the fuel nozzle exit plane. Representative histograms of fuel droplet size distribution and average fuel droplet diameter are presented. Average fuel droplet diameter was not significantly affected by any of the test variables. All arithmetic average fuel droplet diameter data were within a 19- to 36-micrometer band.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1975
Accession Number
ADA007687

Entities

People

  • C. R. Darlington
  • J. C. Billingsley
  • R. A. Wasson Jr.

Organizations

  • Arnold Engineering Development Complex

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Data Acquisition
  • Diameters
  • Engineering
  • Flow
  • Flow Rate
  • Free Stream
  • Fuel Injection
  • Fuel Nozzles
  • Fuel Systems
  • Holograms
  • Holography
  • Lasers
  • Nozzles
  • Physical Properties
  • Ruby Lasers
  • Test Facilities

Fields of Study

  • Agricultural and Food sciences
  • Physics

Readers

  • Aerodynamics/Aeronautics.
  • Internal Combustion Engine (ICE) Technology.
  • Mathematics or Statistics