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Sensitivity of SAE Total Pressure Intake Distortion Descriptors to Pressure Fluctuations at the Engine-Intake Interface Plane
Technical Paper
2011-01-2544
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
A methodology to evaluate the sensitivity of total pressure intake distortion descriptors defined by SAE ARP 1420 to individual pressure fluctuations in the Aerodynamic Interface Plane -AIP- has been developed. Individual pressure fluctuations were simulated as a white noise using a random number generator with a Gaussian distribution of known standard deviation. Monte Carlo experiments were performed perturbing different steady total pressure patterns on the AIP with random signals of different RMS values. Instantaneous distortion descriptors were calculated and statistically characterized. General correlations were obtained applying maximum value statistics to relate the maximum expected distortion increment to the RMS of the individual pressure fluctuations, the mean total pressure on the AIP and the number of samples.
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Authors
Citation
Funes Sebastian, D., "Sensitivity of SAE Total Pressure Intake Distortion Descriptors to Pressure Fluctuations at the Engine-Intake Interface Plane," SAE Technical Paper 2011-01-2544, 2011, https://doi.org/10.4271/2011-01-2544.Also In
References
- SAE International Aerospace Recommended Practice “Gas Turbine Engine Inlet Flow Distortion Guidelines,” SAE Standard ARP1420B July 2011
- SAE International Aerospace Information Report “Inlet Total Pressure-Distortion Considerations for Gas Turbine Engines,” SAE Standard AIR1419A July 2011
- SAE International Aerospace Information Report “Distortion Synthesis/Estimation Techniques,” SAE Standard AIR5826 July 2011
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- Jacocks, J. L. “Statistical Analysis of Distortion Factors,” AIAA Paper No. 72-1100 December 1972
- Stevens, C. H. Spong, E. D. Oliphant, R. C. “Evaluation of a Statistical Method for Determining Peak Inlet Flow Distortion Using F-15 and F-18 Data,” AIAA Paper No. 80-1109 June 1980