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Energy efficient engine: Low-pressure turbine subsonic cascade component development and integration programA subsonic cascade test program was conducted to provide technical data for optimizing the blade and vane airfoil designs for the Energy Efficient Engine Low-Pressure Turbine component. The program consisted of three parts. The first involved an evaluation of the low-chamber inlet guide vane. The second, was an evaluation of two candidate aerodynamic loading philosophies for the fourth blade root section. The third part consisted of an evaluation of three candidate airfoil geometries for the fourth blade mean section. The performance of each candidate airfoil was evaluated in a linear cascade configuration. The overall results of this study indicate that the aft-loaded airfoil designs resulted in lower losses which substantiated Pratt & Whitney Aircraft's design philosophy for the Energy Efficient Engine low-pressure turbine component.
Document ID
19840019670
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Sharma, O. P. (Pratt and Whitney Aircraft Group East Hartford, CT, United States)
Kopper, F. C. (Pratt and Whitney Aircraft Group East Hartford, CT, United States)
Knudsen, L. K. (Pratt and Whitney Aircraft Group East Hartford, CT, United States)
Yustinich, J. B. (Pratt and Whitney Aircraft Group East Hartford, CT, United States)
Date Acquired
September 4, 2013
Publication Date
January 1, 1982
Subject Category
Aircraft Propulsion And Power
Report/Patent Number
NASA-CR-165592
PWA-5594-167
NAS 1.26:165592
Accession Number
84N27738
Funding Number(s)
CONTRACT_GRANT: NAS3-20646
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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