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TECHNICAL PAPERS

Passive Flow Control on Low-Pressure Turbine Airfoils

[+] Author and Article Information
Ralph J. Volino

Department of Mechanical Engineering, United States Naval Academy, Annapolis, MD 21402e-mail: volino@usna.edu

J. Turbomach 125(4), 754-764 (Dec 01, 2003) (11 pages) doi:10.1115/1.1626685 History: Received December 01, 2002; Revised March 01, 2003; Online December 01, 2003
Copyright © 2003 by ASME
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References

Hourmouziadis, J., 1989, “Aerodynamic Design of Low Pressure Turbines,” AGARD Lecture Series 167.
Mayle,  R. E., 1991, “The Role of Laminar-Turbulent Transition in Gas Turbine Engines,” ASME J. Turbomach., 113, pp. 509–537.
Sharma, O. P., Ni, R. H., and Tanrikut, S., 1994, “Unsteady Flow in Turbines,” AGARD Lecture Series 195, Paper No. 5.
Hodson, H. P., 1991, “Aspects of Unsteady Blade-Surface Boundary Layers and Transition in Axial Turbomachines,” Boundary Layers in Turbomachines, VKI Lecture Series 1991-06.
Wisler, D. C., 1998, “The Technical and Economic Relevance of Understanding Boundary Layer Transition in Gas Turbine Engines,” in Minnowbrook II, 1997 Workshop on Boundary Layer Transition in Turbomachines, LaGraff, J. E., and Ashpis, D. E., eds., NASA/CP-1998-206958, NASA Glenn Research Center, Cleveland, OH, pp. 53–64.
Curtis,  E. M., Hodson,  H. P., Banieghbal,  M. R., Denton,  J. D., Howell,  R. J., and Harvey,  N. W., 1997, “Development of Blade Profiles for Low-Pressure Turbine Applications,” ASME J. Turbomach., 119, pp. 531–538.
Volino,  R. J., 2002, “Separated Flow Transition Under Simulated Low-Pressure Turbine Airfoil Conditions: Part 1—Mean Flow and Turbulence Statistics,” ASME J. Turbomach., 124, pp. 645–655.
Van Treuren,  K. W., Simon,  T., von Koller,  M., Byerley,  A. R., Baughn,  J. W., and Rivir,  R., 2002, “Measurements in a Turbine Cascade Flow Under Ultra Low Reynolds Number Conditions,” ASME J. Turbomach., 124, pp. 100–106.
Howell,  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.
Stadtmüller, P., Fottner, L., and Fiala, A., 2000, “Experimental and Numerical Investigation of Wake-Induced Transition on a Highly Loaded LP Turbine at Low Reynolds Numbers,” ASME paper no. 2000-GT-0269.
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Lake, J. P., King, P. I., and Rivir, R. B., 2000, “Low Reynolds Number Loss Reduction on Turbine Blades With Dimples and V-Grooves,” AIAA paper no. 00-738.
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Byerley,  A. R., Störmer,  O., Baughn,  J. W., Simon,  T. W., Van Treuren,  K. W., and List,  J., 2002, “Using Gurney Flaps to Control Laminar Separation on Linear Cascade Blades,” ASME J. Turbomach., 125, pp. 114–120.
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Figures

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Schematic of the test section
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Scale drawing of suction side airfoil showing location of bar
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Cp profiles, low FSTI, Re=25,000 cases
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Station 7–11 profiles, low FSTI, Re=25,000 cases: (a) mean velocity, (b) u, (c) intermittency
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Station 7—profiles, high FSTI, Re=25,000 cases: (a) mean velocity, (b) u, (c) intermittency
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Station 7–11 profiles, low FSTI, Re=50,000 cases: (a) mean velocity, (b) u, (c) intermittency
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Station 7–11 profiles, high FSTI, Re=50,000 cases: (a) mean velocity, (b) u, (c) intermittency
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Station 7–11 profiles, low FSTI, Re=100,000 cases: (a) mean velocity, (b) u, (c) intermittency
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Station 7–11 profiles, high FSTI, Re=100,000 cases: (a) mean velocity, (b) u, (c) intermittency
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Station 7–11 profiles, low FSTI, Re=200,000 cases: (a) mean velocity, (b) u, (c) intermittency
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Station 7–11 profiles, high FSTI, Re=200,000 cases: (a) mean velocity, (b) u, (c) intermittency
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Station 7–11 profiles, low FSTI, Re=300,000 cases: (a) mean velocity, (b) u, (c) intermittency
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Station 7–11 profiles, high FSTI, Re=300,000 cases: (a) mean velocity, (b) u, (c) intermittency
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Shape factor and momentum thickness versus streamwise location, low FSTI, Re=100,000: (a) H, (b) θ
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Station 11 shape factor and momentum thickness versus Re, low-FSTI cases: (a) H, (b) θ
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Station 11 shape factor and momentum thickness versus Re, high-FSTI cases: (a) H, (b) θ
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Correlation of transition and reattachment start location to bar height; bars indicate range of possible values resulting from finite station spacing

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