Potential and Viscous Interactions for a Multi-Blade-Row Compressor

[+] Author and Article Information
Yu-Tai Lee

Naval Surface Warfare Center, Carderock Division, West Bethesda, MD 20817e-mail: LeeYT@nswccd.navy.mil

JinZhang Feng

The Pennsylvania State University, University Park, PA 16802e-mail: fengji@pweh.com

J. Turbomach 126(4), 464-472 (Dec 29, 2004) (9 pages) doi:10.1115/1.1740778 History: Received December 01, 2002; Revised March 01, 2003; Online December 29, 2004
Copyright © 2004 by ASME
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Schematics of the compressor tested by Hsu and Wo (1997)
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Definition for Gap 1, Gap 2, and indexing d/S
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Configurations of R/S and S/R with the definition of the stator force
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Comparison of blade wake velocities with the viscous wake vorticity (VWV) model
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Normal forces on (a) the rotor; and (b) the stator for the R/S configuration with Gap1=0.1c
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Comparison of unsteady forces on the stator under R/S configuration with Gap 1 of (a) 0.1c; and (b) 0.3c
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Patterns of vortex field for t/T at (a) 0.04; (b) 0.16; (c) 0.44; and (d) 0.90
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Instantaneous pressure distributions around the stator blade at four instants shown in Fig. 7
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Normal forces on (a) the stator; and (b) the rotor for the S/R configuration with Gap2=0.1c
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Comparison of unsteady forces on the stator under S/R configuration with Gap1=0.1c
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Averaged pressure distributions on the stator under R1/S/R2 with Gap1=Gap2=0.1c and d/Ss=0
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Averaged normal forces on R1, S, and R2 for the rotor indexing with (a) Gap1=0.1c; and (b) Gap2=0.1c
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Instantaneous minimum-to-maximum normal forces on R1, S, and R2 for rotor indexing with (a) Gap1=0.1c; (b) Gap2=0.1c




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