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TECHNICAL PAPERS

Aerodynamic Performance of a Very High Lift Low Pressure Turbine Blade With Emphasis on Separation Prediction

[+] Author and Article Information
Régis Houtermans, Thomas Coton, Tony Arts

Von Karman Institute, 72 Ch. de Waterloo, Rhode-St-Genèse 1640, Belgium

J. Turbomach 126(3), 406-413 (Sep 03, 2004) (8 pages) doi:10.1115/1.1748416 History: Received December 01, 2002; Revised March 01, 2003; Online September 03, 2004
Copyright © 2004 by ASME
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References

Howel,  R. J., Ramesh,  O. N., Hodson,  H. P., Harvey,  N. W., and Schulte,  V., 2001, “High Lift and Aft-Loaded Profiles for Low-Pressure Turbines,” ASME J. Turbomach., 123, pp. 181–188.
Brunner, S., Fottner, L., and Schiffer, H.-P., 2000, “Comparison of Two Highly Loaded Low Pressure Turbine Cascades Under the Influence of Wake-Induced Transition,” ASME Paper 2000-GT-268.
Solomon, W. J., 2000, “Effects of Turbulence and Solidity on the Boundary Layer Development in a Low Pressure Turbine,” ASME Paper 2000-GT-273.
Roberts,  W. B., 1975, “The Effect of Reynolds Number and Laminar Separation on Axial Cascade Performance,” ASME J. Eng. Power, 97, pp. 261–274.
Mayle,  R. E., 1991, “The Role of Laminar-Turbulent Transition in Gas Turbine Engines,” ASME J. Turbomach., 113, pp. 509–537.
Walker,  G. J., 1993, “The Role of Laminar-Turbulent Transition in Gas Turbine Engines: A Discussion,” ASME J. Turbomach., 115, pp. 207–218.
Malkiel,  E., and Mayle,  R. E., 1996, “Transition in Separation Bubble,” ASME J. Turbomach., 118, pp. 752–759.
Lou, W., and Hourmouziadis, J., 2000, “Separation Bubble under Steady and Unsteady Main Flow Conditions,” ASME Paper 2000-GT-0270.
Qiu, S., and Simon, T. W., 1997, “An Experimental Investigation of Transition as Applied to Low Pressure Turbine Suction Surface Flows,” ASME Paper 97-GT-455.
Volino, R. J., and Hultgren, L. S. 2000, “Measurements in Separated and Transitional Boundary Layers Under Low-Pressure Turbine Airfoil Conditions,” ASME Paper 2000-GT-0260.
Volino, R. J., 2002, “Separated Flow Transition under Simulated Low-Pressure Turbine Airfoil Conditions: Part I—Mean Flow and Turbulence Statistics,” ASME Paper GT-2002-30236, and “Separated Flow Transition under Simulated Low-Pressure Turbine Airfoil Conditions: Part II—Turbulence Spectra,” ASME Paper GT-2002-30237.
Hatman,  A., and Wang,  T., 1999, “A Prediction Model for Separated-Flow Transition,” ASME J. Turbomach., 121, pp. 594–602.
Yaras, M. I., 2001, “Measurements of the Effects of Pressure-Gradients History on Separation-Bubble Transition,” ASME Paper 2001-GT-0193.
Yaras, M. I., 2002, “Measurements of the Effects of Freestream Turbulence on Separation-Bubble Transition,” ASME Paper GT-2002-30232.
Müller, M., Gallus, H. E., and Niehuis, R., 2000, “A Study on Models to Simulate Boundary Layer Transition in Turbomachinery Flows,” ASME Paper 2000-GT-274.
Müller, M., Gallus, H. E., and Niehuis, R., 2001, “Numerical Simulation of the Boundary Layer Transition in Turbomachinery Flows,” ASME Paper 2001-GT-0475.
Coton, T., Arts, T., Lefebvre, M., and Liamis, N., 2002, “Unsteady and Calming Effects Investigation on a Very High Lift LP Turbine Blade—Part I: Experimental Analysis,” ASME Paper GT-2002-30227.
Schlichting, H., and Gersten, K., 2000, Boundary Layer Theory, Springer-Verlag, Heidelberg.
Walker, G. J, 1989, “Modeling of Transitional Flow in Laminar Separation Bubbles,” Ninth International Symposium on Air Breathing Engines, Athens, Greece, Sept. AIAA ISABE, pp. 539–548.
Narasimha,  R., 1985, “The Laminar-Turbulent Transition Zone in the Boundary Layer,” Prog. Aerosp. Sci., 22(1), pp. 29–80.

Figures

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Cp distribution for both compressible and incompressible profiles
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Compressible and incompressible cascades
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Profile losses as a function of Reis for five incidences
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β̄2 as a function of Reis for five incidences
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Cp for three incidences at Reis=130000
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Cp for three Reis at zero incidence
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Loss distribution along the span for several incidences with Reis=130000
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β̄2 distribution along the span for several incidences with Reis=130000
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Loss distribution along the span for several Reis at zero incidence
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Representation of the determination procedure
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Reθ,s as a function of Ks
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Reθ,s as a function of Rex,s
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Rex,rec as a function of Rex,s
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Rex,r as a function of Rex,s
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Cp at several Reynolds numbers for long and short bubbles
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Rex,s-rec as a function of Reθ,s for long bubbles and Rex,LT as a function of Reθ,s for short bubbles
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Rex,s−t as a function of Reθ,s for both long and short bubbles

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