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TECHNICAL PAPERS

Impact of Geometric Variability on Axial Compressor Performance

[+] Author and Article Information
Victor E. Garzon, David L. Darmofal

Department of Aeronautics and Astronautics, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139

J. Turbomach 125(4), 692-703 (Dec 01, 2003) (12 pages) doi:10.1115/1.1622715 History: Received December 01, 2002; Revised March 01, 2003; Online December 01, 2003
Copyright © 2003 by ASME
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References

Figures

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IBR mid-span section: PCA modes
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IBR mid-span section: Scaled mode 1
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IBR mid-span section: Scaled mode 3
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Eigenvalues of covariance matrix versus number of samples. Average eigenvalues (—), ±2σ interval about the mean (-.-) and ±10% accuracy bands (- - -).
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IBR Pressure Coefficient, M1=0.90, axial velocity-density ratio (AVDR): 1.27
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IBR: Loss and turning histograms
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IBR: Mean and standard deviation versus noise amplitude
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IBR: Impact of geometric variability on loss coefficient distribution, a=1,2,[[ellipsis]],8
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IBR: Impact of geometric variability on turning distribution, a=1,2,[[ellipsis]],8
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IBR: Effect of geometric variability on momentum thickness. Mean indicated by solid lines, one-standard deviation interval by error bars. [SS]: suction side, [PS]: pressure side.
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IBR: Effect of geometric variability on boundary layer entropy generation as per Eq. (10). Mean indicated by solid lines, one-standard deviation interval by error bars. [SS]: suction side, [PS]: pressure side.
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IBR mid section: Statistics versus number of PCA modes, a=5
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IBR: Loss coefficient and turning angle versus incidence, a=5
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Measured deviations for sample point and flank-milled IBR

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