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TECHNICAL PAPERS

Pressure and Suction Surfaces Redesign for High-Lift Low-Pressure Turbines

[+] Author and Article Information
P. González, I. Ulizar, R. Vázquez

ITP, Industria de Turbo Propulsores, Madrid, Spain

H. P. Hodson

Whittle Laboratory, Cambridge University, Cambridge, U.K.e-mail: hph@eng.cam.ac.uk

J. Turbomach 124(2), 161-166 (Apr 09, 2002) (6 pages) doi:10.1115/1.1452747 History: Received October 16, 2000; Online April 09, 2002
Copyright © 2002 by ASME
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References

Figures

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Test section of the low-speed steady-state cascade
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Test section of the low-speed unsteady setup
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Location of the tapping over the surface
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Isentropic surface velocity distributions for profiles F and G at Red
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Profiles F and G: isentropic surface velocity distributions at three Reynolds numbers
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(a) Profiles F and G variation of stagnation profile loss coefficient with Reynolds number; (b) profiles F and G stagnation pressure loss coefficient profile downstream the cascade at Red
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Isentropic surface velocity distributions under steady flow conditions for profiles G and G2 at Red—(a) experimental data, (b) numerical predictions comparison
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Isentropic surface velocity distributions under steady flow conditions for profile G at Red: prediction versus experiments
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Isentropic surface velocity distributions for profile G2 at Red: steady versus unsteady (reduced frequency ≈1, ϕ≈0.8) measurements
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Isentropic surface velocity distributions under unsteady flow conditions (reduced frequency ≈1, ϕ≈0.8) for profile G and profile G2 at Red
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Details of suction surface isentropic velocity distribution for profile G and G2 at a low Reynolds number (≈105)—(a) under steady, and (b) unsteady conditions
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(a) Steady-state measurements: variation of stagnation pressure loss coefficient with Reynolds; (b) profile G2: variation of stagnation pressure loss coefficient with Reynolds and unsteadiness; (c) unsteady measurements: variation of stagnation pressure loss coefficient with Reynolds

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