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Analytical investigation of nonrecoverable stallA lumped parameter model of the TF34 engine is formulated to study nonrecoverable stall. Features of the model include forward and reverse flow, radial flow in the fan, and variable corrected speed. The purpose of the study is to point out those parameters to which recoverability is highly sensitive but are not well known. Experimental research may then be directed toward identification of the parameters in that category. Compressor performance in the positive flow region and radial flow in the fan are shown to be important but unknown parameters determining recoverability. Other parameters such as compressor performance during reverse flow and in-stall efficiency have relatively small impact on recoverability.
Document ID
19820013321
Document Type
Technical Memorandum (TM)
Authors
Wenzel, L. M.
(NASA Lewis Research Center Cleveland, OH, United States)
Bruton, W. M.
(NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
September 4, 2013
Publication Date
February 1, 1982
Subject Category
Aircraft Propulsion And Power
Report/Patent Number
E-1126
NAS 1.15:82792
NASA-TM-82792
Accession Number
82N21195
Funding Number(s)
PROJECT: RTOP 505-32-68
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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