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Thrust performance of isolated, two-dimensional suppressed plug nozzles with and without ejectors at Mach numbers from 0 to 0.45A series of two-dimensional plug nozzles was tested with and without ejector shrouds at free stream Mach numbers from 0 to 0.45 and over a range of nozzle pressure ratios from 2 to 4. These nozzles were also tested with and without chute noise suppressors. A two-dimensional plug nozzle has an efficiency of 96.1 percent at an assumed takeoff pressure ratio of 3.0 and Mach 0.36. A 12-chute suppressed nozzle with sidewalls has an efficiency of 81.0 percent (15.1 percent below the unsuppressed nozzle).
Document ID
19760017153
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Harrington, D. E. (NASA Lewis Research Center Cleveland, OH, United States)
Schloemer, J. J. (GE Co. Cincinnati, United States)
Skebe, S. A. (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
September 3, 2013
Publication Date
May 1, 1976
Subject Category
Aircraft Propulsion And Power
Report/Patent Number
NASA-TM-X-3384
E-8556
Accession Number
76N24241
Funding Number(s)
PROJECT: RTOP 505-11
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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