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Effect of screen-induced total-pressure distortion on axial-flow compressor stability (1974)

Calogeras, J. E. ; Johnsen, R. L. ; Burstadt, P. L.

In: CASI

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Publication Date: 2019-06-27

Description: An experimental investigation was made to determine the effects of screen-induced total-pressure distortions on two J85-GE-13 turbojet engines. Results were compared to those from a previous program run with a third engine. All compressors were found to be sensitive to a critical angle of circumferential distortion equal to 60 deg., and they all adhered closely to the parallel compressor model. The sensitivity of compressor exit pressure to virtually any type of distortion pattern can be determined by defining stall lines for undistorted, hub radial distorted, and tip radial distorted inflows. The effect of multiple sectors of circumferential distortion is defined.

Keywords: AERODYNAMICS

Type: NASA-TM-X-3017 , E-7792

Format: application/pdf

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