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Test techniques for obtaining off-nominal compressor data during engine testsSeveral unique techniques and related devices are described which are in use at the Lewis Research Center for off-design testing of fan and compressor sections in full-scale jet engines. The devices presented permit a wide range of experimental conditions and minimize downtime for hardware changes. The techniques involve use of such devices as inlet pressure distortion jets, a hydrogen burner for inlet temperature distortions, fan back pressure jets to simulate a variable area nozzle, and either an inflow-outflow bleed system or a fuel spurt system to alter compressor discharge pressure.
Document ID
19740022137
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Biesiadny, T. J. (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
September 3, 2013
Publication Date
January 1, 1974
Subject Category
Propulsion Systems
Report/Patent Number
E-8062
NASA-TM-X-71597
Meeting Information
Meeting: Aerospace Engr. and Manuf. Meeting
Location: San Diego, CA
Country: United States
Start Date: September 30, 1974
End Date: October 3, 1974
Sponsors: Society of Automotive Engineers
Accession Number
74N30250
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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