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Turbofan forced mixer lobe flow modeling. Part 3: Application to augment enginesMilitary engines frequently need large quantities of thrust for short periods of time. The addition of an augmentor can provide such thrust increases but with a penalty of increased duct length and engine weight. The addition of a forced mixer to the augmentor improves performance and reduces the penalty, as well as providing a method for siting the required flame holders. In this report two augmentor concepts are investigated: a swirl-mixer augmentor and a mixer-flameholder augmentor. Several designs for each concept are included and an experimental assessment of one of the swirl-mixer augmentors is presented.
Document ID
19890000654
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Barber, T. (Pratt and Whitney Aircraft East Hartford, CT, United States)
Moore, G. C. (Pratt and Whitney Aircraft East Hartford, CT, United States)
Blatt, J. R. (Pratt and Whitney Aircraft East Hartford, CT, United States)
Date Acquired
September 5, 2013
Publication Date
October 1, 1988
Publication Information
Publisher: NASA
Subject Category
Aerodynamics
Report/Patent Number
NAS 1.26:4147-PT-3
NASA-CR-4147-PT-3
E-4085
Accession Number
89N10025
Funding Number(s)
PROJECT: RTOP 505-62-21
CONTRACT_GRANT: NAS3-23039
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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