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TECHNICAL PAPERS

Rotor-Stator Interactions in a Four-Stage Low-Speed Axial Compressor—Part I: Unsteady Profile Pressures and the Effect of Clocking

[+] Author and Article Information
Ronald Mailach, Konrad Vogeler

Dresden University of Technology, Institute for Fluid Mechanics, 01062 Dresden, Germany

J. Turbomach 126(4), 507-518 (Dec 29, 2004) (12 pages) doi:10.1115/1.1791641 History: Received October 01, 2003; Revised March 01, 2004; Online December 29, 2004
Copyright © 2004 by ASME
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References

Figures

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Sectional drawing of Dresden LSRC, rotor and stator blades with piezoresistive pressure transducers on PS and SS
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Compressor map of Dresden LSRC, design speed
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Pressure distribution on the rotor and stator blades of the first stage, MS, design speed, design point (ξ=1.00,ζ=1.0)
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Unsteady pressure distribution on PS and SS of stator 1, MS, design point (ξ=1.00,ζ=1.0)
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Unsteady pressure on PS and SS of stator 1, MS, 50% chord, design point (ξ=1.00,ζ=1.0)
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Frequency spectrum of pressure on stator 1, SS, MS, 50% chord, design point (ξ=1.00,ζ=1.0)
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Unsteady pressure distribution on PS and SS of stator 1, MS, operating point near stability limit (ξ=0.85,ζ=1.0)
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Unsteady pressure on PS and SS of stator 1, MS, 50% chord, operating point near stability limit (ξ=0.85,ξ=1.0)
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Unsteady pressure distribution on PS and SS of stator 3, MS, design point (ξ=1.00,ζ=1.0)
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Unsteady pressure distribution on PS and SS of stator 4, MS, design point (ξ=1.00,ζ=1.0)
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Unsteady pressure distribution (rms values) on PS and SS of stator 4, MS, design point (ξ=1.00,ζ=1.0)
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Unsteady pressure distribution on PS and SS of rotor 1, MS, design point (ξ=1.00,ζ=1.0)
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Unsteady pressure on PS and SS of rotor 1, MS, 50% chord, design point (ξ=1.0,ζ=1.0)
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Frequency spectrum of pressure on rotor 1, SS, MS, 50% chord, design point (ξ=1.00,ζ=1.0)
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Unsteady pressure distribution on PS and SS of rotor 3, MS, design point (ξ=1.00,ζ=1.0)
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Blade section with clocking positions of stator 2; IGV, stator 1, 3 and 4 at fixed positions
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Ensemble-averaged pressure on rotor 3 depending on clocking position of the upstream stator 2 (stator 1, 3 and 4 at fixed positions), SS, MS, 50% chord, design point (ξ=1.00,ζ=1.0)
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Ensemble-averaged pressure on rotor 3 depending on clocking position of the downstream stator 3 (stator 1, 2 and 4 at fixed positions), SS, MS, 50% chord, design point (ξ=1.00,ζ=1.0)
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Classification of the influences of stator 1–4 on unsteady pressure on rotor 3, SS, MS, 50% chord, design point (ξ=1.00,ζ=1.0)
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Variation of first harmonic of pressure on rotor 3, SS, MS, 50% chord, depending on clocking position of individually clocked stator 1–4, design point (ξ=1.00,ζ=1.0)

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