Wake Recovery Performance Benefit in a High-Speed Axial Compressor

[+] Author and Article Information
Dale E. Van Zante

Iowa State University, Ames, IA 50011e-mail: dale.vanzante@slgrc.nasa.gov

John J. Adamczyk, Anthony J. Strazisar

NASA Glenn Research Center, Cleveland, OH 44135

Theodore H. Okiishi

Iowa State University, Ames, IA 50011

J. Turbomach 124(2), 275-284 (Apr 09, 2002) (10 pages) doi:10.1115/1.1445793 History: Received January 01, 1997; Revised November 11, 2001; Online April 09, 2002
Copyright © 2002 by ASME
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Grahic Jump Location
Disturbance kinetic energy velocity components
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Wake stretching situations
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Operating map for rotor alone and in the stage environment
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LDV measurement locations for rotor and stage environment with axial locations of rotor trailing edge (TE), stator leading edge (SLE), and stator trailing edge (STE) at 75 percent span
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Time average absolute velocity (m/s) and relative velocity magnitude (m/s) for a fixed rotor/stator position based on laser anemometer data at 75 percent span
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Measured wakes in the rotor only environment at the stator leading edge and 120 percent stator chord planes from the PE and NS LFA data
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Midpitch wake profiles for PE and NS at the stator leading edge and stator exit planes in the stage environment
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Comparison of the DKE decay in the rotor only and pitch average DKE in the stage environment for the PE and NS LDV data
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Wake locations/orientation as shown by the number of measurements distribution
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Comparison of LDV data to wake decay model predictions for the PE and NS cases
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Entropy contours showing the rotor wake locations for a fixed rotor/stator position from the near stall simulation




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