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Test Techniques for Obtaining Off-Nominal Compressor Data During Engine Tests
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English
Abstract
Several unique techniques and related devices 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 not only permit a wide range of experimental conditions but also 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.
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Citation
Biesiadny, T., "Test Techniques for Obtaining Off-Nominal Compressor Data During Engine Tests," SAE Technical Paper 740822, 1974, https://doi.org/10.4271/740822.Also In
References
- Meyer C. L. McAulay J. E. Biesiadny T. J. “Technique for Inducing Controlled Steady-State and Dynamic Inlet Pressure Disturbances for Jet Engine Tests.” Jan. 1970
- Rudey R. A. Antl R. J. “The Effect of Inlet Temperature Distortion on the Performance of a Turbo-Fan Engine Compressor System.” New York June 1970
- Braithwaite W. M. “Experimental Evaluation of a TF30-P-3 Turbofan Engine in an Altitude Facility: Effect of Steady-State Temperature Distortion.” November 1973
- Mehalic C. M. Lottig R. A. “Steady-State Inlet Temperature Distortion Effects on the Stall Limits of a J85-GE-13 Turbojet Engine.” February 1974
- Werner R. A. Abdelwahab M. Braithwaite W. M. “Performance and Stall Limits of an Afterburner-Equipped Turbofan Engine with and without Inlet Flow Distortion.” April 1970
- Braithwaite W. M. Vollmar W. R. “Performance and Stall Limits of a YTF30-P-1 Turbofan Engine with Uniform Inlet Flow.” June 1969