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TECHNICAL PAPERS

Improving the Aero-Thermal Characteristics of Turbomachinery Cascades

[+] Author and Article Information
Marcello Manna, Raffaele Tuccillo

Dipartimento di Ingegneria, Meccanica per l’Energetica (D.I.M.E.), Università di Napoli “Federico II”, Napoli, 80125 Italy

J. Turbomach 125(2), 317-327 (Apr 23, 2003) (11 pages) doi:10.1115/1.1544510 History: Received February 06, 2002; Online April 23, 2003
Copyright © 2003 by ASME
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References

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Goel, S., et al., 1996, “Turbine Airfoil Design Optimization,” ASME Paper No. 96-GT-158.
Leonard,  O., and Van den Braembussche,  R., 1992, “Design Methods for Subsonic and Transonic Cascades with Prescribed Mach Number Distribution,” Trans. ASME, 114(3), pp. 553–560.
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Figures

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Comparison of flow parameter distributions in the parametric study
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Progress in the optimizing process O1
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Blade profile variation during the optimization O1
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Progress in flow parameter distribution during optimization O1
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Progress in the optimizing process O2
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Comparison of reference and optimized blade profiles
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Comparison of base and optimized flow parameter distributions
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Comparison of iso-Mach number lines
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Blade parameter definition
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Profile approximation for a circular arc airfoil of the C4 series
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Profile approximation for the LS89 turbine blade
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A convergence history of the cascade flow calculation
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Experimental data and computational results for different grid sizes and for the approximated blade geometry
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Cascade performance behavior in the second parametric analysis
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Cascade performance behavior in the third parametric analysis
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Comparison of the original blade profile with the best results of PS2 and PS3

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