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TECHNICAL PAPERS

Measurement and Analysis of Ingestion Through a Turbine Rim Seal

[+] Author and Article Information
O. Gentilhomme, N. J. Hills, A. B. Turner

Thermo-Fluid Mechanics Research Centre, University of Sussex, Brighton, East Sussex, BN1 9QT UK

J. W. Chew

Fluids Research Centre, School of Engineering, University of Surrey, Guildford, Surrey, GU2 7XH UK

J. Turbomach 125(3), 505-512 (Aug 27, 2003) (8 pages) doi:10.1115/1.1556411 History: Received January 25, 2002; Online August 27, 2003
Copyright © 2003 by ASME
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References

Campbell, D. A., 1978, “Gas Turbine Disc Sealing System Design,” Proc. Conf. on Seal Technology in Gas Turbine Engines, ASME Paper 91-GT-32; AGARD-CP-237.
Abe, T., Kikuchi, J. and Takeuchi, H., 1979, “An Investigation of Turbine Disc Cooling,” Paper GT30, 3rd CIMAC Congress, Vienna.
Kobayashi,  N., Matsumato,  M., and Shizuya,  M., 1984, “An Experimental Investigation of a Gas Turbine Disc Cooling System,” ASME J. Eng. Gas Turbines Power, 106, pp. 136–141.
Phadke,  U. P., and Owen,  J. M., 1988, “Aerodynamic Aspects of the Rim Sealing of Gas Turbine Rotor-Stator Systems Parts 1–3,” Int. J. Heat Fluid Flow, 9, pp. 98–117.
Dadkhah,  S., Turner,  A. B., and Chew,  J. W., 1991, “Performance of Radial Clearance Rim Seals in Upstream and Downstream Rotor-Stator Wheelspaces,” ASME Paper 91-GT-32; also ASME J. Turbomachinery, 114, pp. 439–445.
Hamabe, K., and Ishida, K., 1992, “Rim Seal Experiments and Analysis of a Rotor-Stator System With Non-Axisymmetric Main Flow,” ASME Paper 92-GT-160.
Chew, J. W., Green, T., and Turner, A. B., 1994, “Rim Sealing of Rotor-Stator Wheelspaces in the Presence of External Flow,” ASME Paper 94-GT-126.
Green, T., and Turner, A. B., 1992, “Ingestion Into the Upstream Wheelspace of an Axial Turbine Stage,” ASME Paper 92-GT-303.
Bohn, D., Rudzinsky, B., Surken, N., and Gartner, W., 2000, “Experimental and Numerical Investigation of the Influence of Rotor Blades on Hot Gas Ingestion Into the Upstream Cavity of an Axial Turbine Stage,” ASME Paper 2000-GT-284.
Roy, R. P., Xu, G., Feng, J., and Kang, S., 2001, “Pressure Field and Main Stream Gas Ingestion in a Rotor Stator Disc Cavity,” ASME Paper 2001-GT-564.
Hills, N. J., Chew, J. W. and Turner, A. B., 2001, “Computational and Mathematical Modelling of Turbine Rim Seal Ingestion,” ASME Paper 2001-GT-204; also, to be published in ASME J. Turbomach.
Turner,  A. B., Davies,  S. J., Childs,  P. R. N., Harvey,  C. J., and Millward,  J. A., 2000, “Development of a Novel Gas Turbine Driven Centrifugal Compressor,” Proc. Inst. Mech. Eng., 214 , Part A.
Von Karman,  T., 1921, “Uber Laminare und Turbulente Reibung,” Z. Angew. Math. Mech., 1, pp. 233–252.
Pincombe, J. R. and El-Oun, Z., 1986, Unpublished work.
Vaughan, C., 1987, “A Numerical Investigation Into the Effect of an External Flow Field on the Sealing of a rotor-stator Cavity,” Ph.D. thesis, University of Sussex, Brighton, England.
Gambit 1, 1998, Modeling Guide, Fluent Inc.
Fluent 5, 1998, User’s Guide, Fluent Inc.
Hills, N. J., Chew, J. W., Green, T., and Turner, A. B., 1997, “Aerodynamics of Turbine Rim-Seal Ingestion.” ASME Paper 97-GT-268.

Figures

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Annulus pressure measurements
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Cavity swirl calculated from pressure measurements (OC2)
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Concentration measurements at R=0.92
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Domain for the unsteady CFD model 3
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Comparison with annulus pressure measurements (ke:k-ε turbulence model/sa:Spalart-Allmaras turbulence model)—(a) design condition OC1, (b) low-pressure condition OC2
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Axial decay of the NGV pressure asymmetry at the design condition OC1 with the Spalart-Allmaras turbulence model
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Axial decay of harmonic components of the NGV pressure asymmetry at the design condition OC1 with the Spalart-Allmaras turbulence model
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Axial decay of the rotor pressure asymmetry at the design condition OC1 with the Spalart-Allmaras turbulence model
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Axial decay of harmonic components of the rotor pressure asymmetry at the design condition OC1 with the Spalart-Allmaras turbulence mode
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Comparison of simple model for gas ingestion with measurements

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