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TECHNICAL PAPERS

Flowfield Measurements for a Highly Turbulent Flow in a Stator Vane Passage

[+] Author and Article Information
R. W. Radomsky, K. A. Thole

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

J. Turbomach 122(2), 255-262 (Feb 01, 1999) (8 pages) doi:10.1115/1.555442 History: Received February 01, 1999
Copyright © 2000 by ASME
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References

Kuotmos,  P., and McGuirk,  J. J., 1989, “Isothermal Flow in a Gas Turbine Combustor—A Benchmark Experimental Study,” Exp. Fluids, 7, pp. 344–354.
Moss, R. W., 1992, “The Effects of Turbulence Length Scale on Heat Transfer,” University of Oxford, Department of Engineering Science, Report No. OUEL 1924, Ph.D. Dissertation.
Ames,  F. E., 1997, “The Influence of Large Scale High Intensity Turbulence on Vane Heat Transfer,” ASME J. Turbomach., 119, pp. 23–30.
Bailey,  D. A., 1980, “Study of Mean- and Turbulent-Velocity Fields in a Large-Scale Turbine-Vane Passage,” ASME J. Eng. Gas Turbines Power, 102, pp. 88–95.
Priddy,  W. J., and Bayley,  F. J., 1988, “Turbulence Measurements in Turbine Blade Passages and Implications for Heat Transfer,” ASME J. Turbomach., 110, pp. 73–79.
Ames, F. E., 1994, “Experimental Study of Vane Heat Transfer and Aerodynamics at Elevated Levels of Turbulence,” NASA Contractor’s Report 4633.
Bangert, B., Kohli, A., Sauer, J., and Thole, K. A., 1997, “High Freestream Turbulence Simulation in a Scaled-Up Turbine Vane Passage,” ASME Paper No. 97-GT-51.
Radomsky, R. W., and Thole, K. A., 1999, “Effects of High Freestream Turbulence Levels and Length Scales on Stator Vane Heat Transfer,” ASME Paper No. 98-GT-236.
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.
Incropera, F. P., and DeWitt, D. P., 1996, Introduction to Heat Transfer, 3rd ed., Wiley, New York.
Moffat,  R. J., 1988, “Describing Uncertainties in Experimental Results,” Exp. Fluid Sci. 1, pp. 3–17.
FLUENT/UNS User’s Guide, 1996, Release 4.2, Fluent, Inc., Lebanon, NH.
Hinze, J., 1975, Turbulence, 2nd ed., McGraw-Hill, New York.
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Gibson,  M. M., and Rodi,  W., 1981, “A Reynolds-Stress Closure Model of Turbulence Applied to the Calculation of a Highly Curved Mixing Layer,” J. Fluid Mech., 103, pp. 161–182.
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Figures

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Schematic of the stator vane test section
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(a) Inlet mean velocity profiles measured at one-third chord upstream of the vane stagnation; (b) Inlet turbulence levels and length scale measured at one-third chord upstream of the vane stagnation
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(a) Velocity components measured at the geometric stagnation and (b) velocity approaching the vane stagnation and passage
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The rms velocity components, turbulent kinetic energy, and integral length scale approaching the vane stagnation point
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One-dimensional energy spectra approaching the vane stagnation point
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(a) Total velocity vectors and (b) total velocity contours at Tu=0.6 percent
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Total velocity contours at Tu=19.5 percent
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Vane velocity distribution at Tu=0.6 percent and Tu=19.5 percent
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Contours of (a) urms/U, (b) νrms/U, and (c) wrms/U at Tu=19.5 percent
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Contours of k/U at Tu=19.5 percent
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Contours of (a) uν/U2 and (b) R
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Stanton number distribution and turbulent kinetic energy outside the vane boundary layer

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