ABSTRACT (Maximum 200 words) NASA Lewis Research Center's (LeRC) newly developed Nozzle Acoustic Test Rig (NATR) is a large free-jet test facility powered by an ejector system. In order to assess the pumping performance of this ejector concept and determine its sensitivity to various design parameters, a liS-scale model of the NATR was built and tested prior to the operation of the actual facility. This paper discusses the results of the liS-scale model tests and compares them with the findings from the full-scale tests. 14. SUBJECT TERMS 15. NUMBER OF PAGES Ejector-powered; Effects of misalignment; Flow quality; Geometric scaling effects 14 16. PRICE CODE A03 17. SECURITY CLASSIFICATION 18. SECURITY CLASSIFICATION 19. SECURITY CLASSIFICATION 20. UMITATION OF ABSTRACT OF REPORT OF THIS PAGE Unclassified Unclassified NSN 7540-01-280-5500 OF ABSTRACT Unclassified Standard Form 298 (Rev. 2-89) Prescribed by ANSI Std. Z39-18 298-102 REPORT DATE REPORT TYPE 10. UMITATION OF ABSTRACT
[1]
Colin K. Drummond,et al.
A control-volume method for analysis of unsteady thrust augmenting ejector flows
,
1988
.
[2]
Jr. Walter Presz,et al.
Mixer/ejector noise suppressors
,
1991
.
[3]
Morton Alperin,et al.
Thrust Augmenting Ejectors, Part I
,
1983
.
[4]
Paul M. Bevilaqua,et al.
Evaluation of Hypermixing for Thrust Augmenting Ejectors
,
1974
.
[5]
John M. Seiner,et al.
Supersonic jet noise and the high speed civil transport
,
1989
.
[6]
Morton Alperin,et al.
Thrust augmenting ejectors, II
,
1983
.