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Experimental cold-flow evaluation of a ram air cooled plug nozzle concept for afterburning turbojet enginesA concept for plug nozzles cooled by inlet ram air is presented. Experimental data obtained with a small scale model, 21.59-cm (8.5-in.) diameter, in a static altitude facility demonstrated high thrust performance and excellent pumping characteristics. Tests were made at nozzle pressure ratios simulating supersonic cruise and takeoff conditions. Effect of plug size, outer shroud length, and varying amounts of secondary flow were investigated.
Document ID
19730017096
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Straight, D. M. (NASA Lewis Research Center Cleveland, OH, United States)
Harrington, D. E. (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
August 7, 2013
Publication Date
June 1, 1973
Subject Category
Propulsion Systems
Report/Patent Number
E-7387
NASA-TM-X-2811
Accession Number
73N25823
Funding Number(s)
PROJECT: RTOP 501-24
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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