Accession Number:

ADP003137

Title:

Effects of Airblast Atomizer Design Upon Spray Quality,

Descriptive Note:

Corporate Author:

CRANFIELD INST OF TECH (ENGLAND) SCHOOL OF MECHANICAL ENGINEERING

Personal Author(s):

Report Date:

1984-01-01

Pagination or Media Count:

14.0

Abstract:

This paper reviews the results of numerous investigations that have been conducted on airblast atomization as applied to gas turbine engines. The primary motivation for this is the need to identify the effect that various design features have upon the spray quality so that atomizers of optimum performance can be designed with a minimum of cost and complexity. Attention is focused upon such factors as the atomizer scale, configuration, the nature of fuel preparation before exposure to air, etc, for the most commonly used pre-filming and plain-jet airblast atomizers. The experimental mean drop size data included in this paper has been obtained through the use of well-established laser light-scattering techniques over a wide range of conditions. The general conclusion drawn from the data that is currently available is that the plain-jet airblast atomizers featuring multiple, transversely injected liquid jets into a swirling airstream yield spray quality comparable to that achieved by their pre-filming counterparts especially under high air pressure conditions. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE