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TECHNICAL PAPERS

Experimental Investigation of Boundary Layer Behavior in a Simulated Low Pressure Turbine

[+] Author and Article Information
Rickey J. Shyne

NASA Glenn Research Center, Cleveland, OH 44135

Ki-Hyeon Sohn, Kenneth J. De Witt

University of Toledo, Toledo, OH 43606

J. Fluids Eng 122(1), 84-89 (Aug 30, 1999) (6 pages) doi:10.1115/1.483229 History: Received December 16, 1998; Revised August 30, 1999
Copyright © 2000 by ASME
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References

Gardner, W. B., 1981, “Energy Efficient Engine Low Pressure Turbine Boundary Layer Program Technology Report,” NASA CR-165338.
Halstead, D. E., Wisler, D. C., Okiishi, T. H., Walker, G. J., Hodson, H. P., and Shin, H., 1995, “Boundary Layer Development in Axial Compressors and Turbines, Part 3 of 4: LP Turbines,” Proc. ASME 40th International Gas Turbine and Aeroengine Congress & Exposition, Houston, TX, June 5–8, 1995, ASME Paper No. 95-GT-463.
Morin, B. L., and Patrick, W. P., 1991, “Detailed Studies of a Large-Scale Laminar Separation Bubble on a Flat Plate: Volume 1-Experimental Technique, Summarized Results, and Discussion,” UTRC Report No. R91-956786-1.
Suder, K. L., O’Brien, J. E., and Reshotko, E., 1988, “Experimental Study of Bypass Transition in a Boundary Layer,” NASA Report No. TM-100913.
McFarland,  E. R., 1982, “Solution of Plane Cascade Flow Using Improved Surface Singularity Methods,” J. Eng. Power, 104, pp. 668–674.
Shyne, R. J., 1998, “Experimental Study of Boundary Layer Behavior in a Simulated Low Pressure Turbine,” Ph.D. dissertation, University of Toledo, NASA Report No. TM 1998-208503.
Yavuzkurt,  S., 1984, “A Guide to Uncertainty Analysis of Hot-Wire Data,” J. Fluids Eng., 106, pp. 181–186.
Sohn, K. H., and Reshotko, E., 1991, “Experimental Study of Boundary Layer Transition with Elevated Freestream Turbulence on a Heated Flat Plate,” NASA Report No. CR-187068.
Klebanoff, P. S., 1955, “Characteristics of Turbulence in a Boundary Layer with Zero Pressure Gradient,” NACA Report No. 1247.
Gaster, M., 1969, “The Structure and Behavior of Laminar Separation Bubbles,” A.R.C. R&M Report No. 3595.
Roberts,  W. B., 1980, “Calculation of Laminar Separation Bubbles and Their Effect on Airfoil Performance” AIAA J., 18, pp. 25–30.
Davis, R. L., Carter, J. E., and Reshotko, E., 1985, “Analysis of Transitional Separation Bubbles on Infinite Swept Wings,” Proc. AIAA 18th Fluid Dynamics and Plasmadynamics and Lasers Conference, Cincinnati, OH, July 16–18, Reno, NV, AIAA Paper No. AIAA-85-1685.

Figures

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Comparison of variation of transition length Reynolds number with freestream turbulence levels
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Gaster’s two parameter bubble criteria
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(a) rms velocity profiles, Re=100,000 grid 0, (b) grid 2, and (c) grid 3, Δu=±0.00145
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Distribution of urms/Uref grid 0, Re=100,000, (Uref=Ue at x=12.07 cm), Δu=±0.00145
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(a) Intermittency profiles, Re=100,000 grid 0 (δ=0.125 cm), (b) grid 2 (δ=0.128 cm), and (c) grid 3 (δ=0.129 cm),ΔΓ=±1.45 percent
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(a)–(c) Distribution of U/Uref for grids 0, 2 and 3 Re=100,000, (Uref=Ue at x=12.07 cm), ΔU=±0.00145
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Flush-mounted hot-film signals for grid 2; (a) Re=100,000 and (b) Re=250,000,ΔE=±0.0004
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Pressure distribution on the test plate (Re=100,000),ΔCp=±0.005
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Smoke-wire flow visualization of separation bubble, grid 0, Re=50,000
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Schematic of simulated test section (1 in.=2.54 cm)

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