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TECHNICAL PAPERS

Flowfield Measurements in the Endwall Region of a Stator Vane

[+] Author and Article Information
M. B. Kang, K. A. Thole

Mechanical Engineering Department, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061

J. Turbomach 122(3), 458-466 (Feb 01, 1999) (9 pages) doi:10.1115/1.1303703 History: Received February 01, 1999
Copyright © 2000 by ASME
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References

Sieverding,  C. H., 1985, “Recent Progress in the Understanding of Basic Aspects of Secondary Flows in Turbine Blade Passages,” ASME J. Eng. Gas Turbines Power, 107, pp. 248–257.
Langston,  L. S., Nice,  M. L., and Hooper,  R. M., 1977, “Three-Dimensional Flow Within a Turbine Cascade Passage,” ASME J. Eng. Power, 99, pp. 21–28.
Sharma,  O. P., and Butler,  T. L., 1987, “Predictions of Endwall Losses and Secondary Flows in Axial Flow Turbine Cascades,” ASME J. Turbomach., 109, pp. 229–236.
Goldstein,  R. J., and Spores,  R. A., 1988, “Turbulent Transport on the Endwall in the Region Between Adjacent Turbine Blades,” ASME J. Heat Transfer, 110, pp. 862–869.
Wang,  H. P., Olson,  S. J., Goldstein,  R. J., and Eckert,  E. R. G., 1997, “Flow Visualization in a Linear Turbine Cascade of High Performance Turbine Blades,” ASME J. Turbomach., 119, pp. 1–8.
Gregory-Smith,  D. G., and Cleak,  J. G. E., 1992, “Secondary Flow Measurements in a Turbine Cascade With High Inlet Turbulence,” ASME J. Turbo-mach., 110, pp. 1–8.
Moore,  J., Schaffer,  D. M., and Moore,  J. G., 1987, “Reynolds Stresses and Dissipation Mechanisms Downstream of a Turbine Cascade,” ASME J. Turbomach., 109, pp. 258–267.
Bailey,  D. A., 1980, “Study of Mean- and Turbulent-Velocity Fields in a Large-Scale Turbine-Vane Passage,” ASME J. Eng. Power, 102, pp. 88–95.
Gregory-Smith,  D. G., Graves,  C. P., and Walsh,  J. A., 1988, “Growth of Secondary Losses and Vorticity in an Axial Turbine Cascade,” ASME J. Turbomach., 114, pp. 173–183.
Boyle,  R. J., and Russell,  L. M., 1990, “Experimental Determination of Stator Endwall Heat Transfer,” ASME J. Turbomach., 112, pp. 547–558.
Gaugler,  R. E., and Russell,  L. M., 1984, “Comparison of Visualized Turbine Endwall Secondary Flows and Measured Heat Transfer Patterns,” ASME J. Eng. Gas Turbines Power, 106, pp. 168–172.
York,  R. E., Hylton,  L. D., and Mihelc,  M. S., 1984, “An Experimental Investigation of Endwall Heat Transfer and Aerodynamics in a Linear Vane Cascade,” ASME J. Turbomach., 106, pp. 159–167.
Kang,  M., Kohli,  A., and Thole,  K. A., 1999, “Heat Transfer and Flowfield Measurements in the Leading Edge Region of a Stator Vane Endwall,” ASME J. Turbomach., 121, pp. 558–568.
Radomsky,  R. W., and Thole,  K. A., 2000, “Flowfield Measurements for a Highly Turbulent Flow Around a Stator Vane,” ASME J. Turbomach.,122, pp. 255–262.
FLUENT/UNS User’s Guide, Vers. 4.2, Fluent, Inc., Lebanon, NH.
Moffat,  R. J., 1988, “Describing the Uncertainties in Experimental Results,” Exp. Therm. Fluid Sci., 1, pp. 3–17.

Figures

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(a) Top view of the corner test section; (b) velocity correction scheme for the w component
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Locations of the flowfield measurement planes
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(a) Static pressure distribution for vane geometry; (b) velocity measurements for inside and outside passages around the central vane compared with CFD
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Comparison of measured and predicted: (a) Vs/U, and (b) Ψms, at the vane midspan
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Measurements of: (a) Vs/U contours and secondary velocity vectors; (b) turbulent kinetic energy contours for SS-3. Contours of measured: (c) secondary kinetic energy, and (d) pitch (ϕ) angles for the SS-3 plane.
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Stanton number based on Vs for all the planes (based on measured heat transfer coefficients from Kang et al. 13)
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Measurements of: (a) Vs/U and secondary velocity vectors, and (b) secondary kinetic energy contours for PS-1
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Normalized contours of measured: (a) urms/U, (b) vrms/U, (c) wrms/U, and (d) k/U2 for the PS-1 plane
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Contours of measured: (a) yaw (Ψ−Ψms) and (b) pitch (ϕ) angles for the PS-1 plane
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Measurements of: (a) Vs/U contours and secondary velocity vectors, and (b) turbulent kinetic energy contours for PS-2
Grahic Jump Location
Measurements of: (a) Vs/U contours and secondary velocity vectors, and (b) turbulent kinetic energy contours for SS-1
Grahic Jump Location
Measurements of: (a) Vs/U contours and secondary velocity vectors, and (b) turbulent kinetic energy contours for SS-2

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