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TECHNICAL PAPERS

Controlling Secondary-Flow Structure by Leading-Edge Airfoil Fillet and Inlet Swirl to Reduce Aerodynamic Loss and Surface Heat Transfer

[+] Author and Article Information
T. I-P. Shih, Y.-L. Lin

Department of Mechanical Engineering, Michigan State University, East Lansing, MI 48824-1226

J. Turbomach 125(1), 48-56 (Jan 23, 2003) (9 pages) doi:10.1115/1.1518503 History: Received January 03, 2002; Online January 23, 2003
Copyright © 2003 by ASME
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References

Langston, L. S., 2000, “Secondary Flows in Axial Turbines—A Review,” Int Symp Heat Transfer in Gas Turbine Systems.
Deich, M. E., Zaryankin, A. E., Fillipov, G. A., and Zatsepin, M. F., 1960, “Method of Increasing the Efficiency of Turbine Stages and Short Blades,” Teploenergetika, No. 2, Transaction No. 2816, Associated Electrical Industries (Manchester) Ltd., Apr.
Ewen, J. S., Huber, F. W., and Mitchell, J. P., 1973, “Investigation of the Aerodynamic Performance of Small Axial Turbines,” ASME Paper 73-GT-3.
Dossena,  V., Perdichizzi,  A., and Savini,  M., 1999, “The Influence of Endwall contouring on the Performance of a Turbine Nozzle Guide Vane,” ASME J. Turbomach., 121, pp. 200–208.
Duden,  A., Raab,  I., and Fottner,  L., 1999, “Controlling the Secondary Flow in Turbine Cascade by Three-Dimensional Airfoil Design and Endwall Contouring,” ASME J. Turbomach., 121, pp. 191–199.
Burd, S. W., and Simon, T. W., 2000, “Flow Measurements in a Nozzle Guide Vane Passage with a Low Aspect Ratio and Endwall Contouring,” ASME Paper 2000-GT-0213.
Shih, T. I-P., Lin, Y.-L., and Simon, T. W., 2000, “Control of Secondary Flow in Turbine Nozzle Guide Vane by Endwall Contouring,” ASME Paper 2000-GT-0556, May.
Lin, Y.-L., Shih, T. I-P., Chyu, M. K., and Bunker, R. S., “Effects of Gap Leakage on Fluid Flow in a Contoured Turbine Nozzle Guide Vane,” ASME Paper 2000-GT-0555, May 2000.
Lin,  Y.-L., Shih,  T. I-P., Stephens,  M. A., and Chyu,  M. K., 2001, “A Numerical Study of Flow and Heat Transfer in a Smooth and a Ribbed U-Duct with and without Rotation,” ASME J. Heat Transfer, 123, pp. 219–232.
Pierce, E. J., Frangistas, G. A., and Nelson, D. J., 1988, “Geometry-Modification Effects on a Junction-Vortex Flow,” Proc Symp Hydrodynamics Performance Enhancement for Marine Applications, Oct. pp. 37–44.
Davenport,  W. J., Agarwal,  N. K., Dewitz,  M. B., Simpson,  R. L., and Poddar,  K., 1990, “Effects of a Fillet on the Flow Past a Wing-Body Junction,” AIAA J., 28(12), pp. 2017–2024.
Pierce,  E. J., and Shin,  J., 1992, “The Development of a Turbulent Junction Vortex System,” ASME J. Fluids Eng., 114, pp. 559–565.
Bancalari, E., and Nordlund, S., 1999, DOE AGTSR Aero-Heat Transfer Workshop III, Austin, Texas, February 10–12.
Shih, T. I.-P., 2000, DOE AGTSR Aero-Heat Transfer Workshop IV, Minneapolis, Minnesota, October 11–13.
Zess, G. A., and Thole, K. A., 2001, “Computational Design and Experimental Evaluation of Using a Leading Edge Fillet on Gas Turbine Vane,” ASME Paper 2001-GT-0404, June.
Sauer, H., Mueller, R., and Vogeler, K., 2000, “Reduction of Secondary Flow Losses in Turbine Cascades by Leading Edge Modifications at the Endwall,” ASME Paper 2000-GT-0473, May.
Goebel, S. G., Abuaf, N., Lovett, J. A., and Lee, C. P., 1993, “Measurements of Combustor Velocity and Turbulence Profiles,” Paper 93-GT-228, June.
van Fossen,  G. J., and Bunker,  R. S., 2001, “Augmentation of Stagnation Region Heat Transfer Due to Turbulence from a DLN Can Combustor,” ASME J. Turbomach., 123, pp. 140–146.
Menter,  F. R., 1991, “Performance of Popular Turbulence Models for Attached and Separated Adverse Pressure Gradient Flows,” AIAA J., 30(8), pp. 2066–2071.
Menter,  F. R., 1993, “Zonal Two-Equation k-ω Turbulence Models for Aerodynamic Flows,” AIAA Pap. 93–2906.
Thomas,  J. L., Krist,  S. T., and Anderson,  W. K., 1990, “Navier-Stokes Computations of Vortical Flows over Low-Aspect-Ratio Wings,” AIAA J., 28(2), pp. 205–212.
Rumsey,  C. L., and Vatsa,  V. N., 1993, “A Comparison of the Predictive Capabilities of Several Turbulence Models Using Upwind and Central-Difference Computer Codes,” AIAA Pap. 93–0192.
Lin, Y.-L., Schock, H. J., Shih, T. I-P., and Bunker, R. S., 2001, “Effects of Inlet Conditions on Flow and Heat Transfer in Contoured Turbine Nozzle Guide Vanes,” ASME Paper IMECE2001/HTD-24312, Nov.
Lin,  Y.-L., and Shih,  T. I.-P., 2001, “Film Cooling of a Semi-Cylindrical Leading Edge with Injection through Rows of Compound-Angled Holes,” ASME Journal Heat Transfer, 123, pp. 645–654.
Shih, T. I.-P., and Sultanian, B., 2001, “Computations of Internal and Film Cooling,” Heat Transfer in Gas Turbines, ed., B. Suden and M. Faghri, WIT Press, Ashurst, Southhampton, Chapt. 5, pp. 175–225.
Roe,  P. L., 1986, “Characteristic Based Schemes for the Euler Equations,” Ann. Review of Fluid Mechanics, 18, pp. 337–65.
Pulliam,  W. R., and Chaussee,  D. S., 1981, “A Diagonal Form of an Implicit Approximate Factorization Algorithm,” J. Computational Physics, 39, pp. 347–363.
Anderson,  W. K., Thomas,  J. L., and Whitfield,  D. L., 1988, “Multigrid Acceleration of the Flux-Split Euler Equations,” AIAA J., 26(6), pp. 649–654.

Figures

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Basic leading-edge fillet geometries—(a) sharp/pointed, (b) rounded, (c) bulb type
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Schematic of the nozzle vane studied (not drawn to scale)
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Three-dimensional rendering of the nozzle vane studied
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Fillet configurations studied—C1: no fillet, C2: merge on airfoil, C3: merge on endwall
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Illustration of swirls investigated—(a) no swirl with 1/7th profile; (b) S1 swirl (2-D view); (c) S1 swirl (3-D view). S2 is just the opposite of S1 and so is not shown.
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Multiblock grid system used (not all grid lines shown)
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Grid system about the airfoil/flat-endwall junction (not all grid lines shown)—(a) C1, (b) C2, (c) C3
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Cross-flow velocity vector and magnitude in plane A-A
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Streamlines approaching the airfoil/flat-endwall junction, showing the generation of horseshoe vortices
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Surface pressure and velocity vector near surface (y+ between 10 and 20) at airfoil/flat-endwall junction
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Streamlines near the endwalls and the midplane with S1 swirl (no fillets)—(a) contoured endwall, (b) midplane, (c) flat endwall
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Heat transfer coefficient: no fillet with and without swirl
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Heat transfer coefficient: C2 fillet with and without swirl
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Heat transfer coefficient: C3 fillet with and without swirl

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