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TECHNICAL PAPERS

Nonaxisymmetric Turbine End Wall Design: Part II—Experimental Validation

[+] Author and Article Information
J. C. Hartland, D. G. Gregory-Smith

University of Durham, Durham, United Kingdom

N. W. Harvey, M. G. Rose

Rolls-Royce plc, Derby, United Kingdom

J. Turbomach 122(2), 286-293 (Feb 01, 1999) (8 pages) doi:10.1115/1.555446 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. 248–252.
Rose, M. G., 1994, “Non-axisymmetric Endwall Profiling in the HP NGVs of an Axial Flow Gas Turbine,” ASME Paper No. 94-GT-249.
Hartland, J. C., Gregory-Smith, D. G., and Rose, M. G., 1998, “Non-axisymmetric End Wall Profiling in a Turbine Rotor Blade,” ASME Paper No. 98-GT-525.
Gregory-Smith,  D. G., and Cleak,  J. G. E., 1992, “Secondary Flow Measurements in a Turbine Cascade With High Inlet Turbulence,” ASME J. Turbomach., 114, pp. 173–183.
Moore, H., and Gregory-Smith, D. G., 1995, “Turbulence and Transition in Secondary Flows in a Turbine Cascade,” AGARD-CP571, PEP Loss Mechanisms and Unsteady Flows in Turbomachines, Paper No. 8.
Moore, H., and Gregory-Smith, D. G., 1996, “Transition Effects on Secondary Flows in a Turbine Cascade,” ASME Paper No. 96-GT-100.
Hartland, J. C., 1999, Ph.D. thesis, University of Durham, to be submitted.
Gregory-Smith, D. G., and Graves, C. P., 1983, “Secondary Flows and Losses in a Turbine Cascade,” AGARD-CP351, Paper No. 17.
Gregory-Smith, D. G., 1995, “Calculations of the Secondary Flow in a Turbine Cascade,” Computational Fluid Dynamics in Aeropropulsion, ASME AD-49, p. 77.
Cleak,  J. G. E., and Gregory-Smith,  D. G., 1992, “Turbulence Modeling for Secondary Flow Prediction in a Turbine Cascade,” ASME J. Turbomach., 114, pp. 590–598.

Figures

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Cascade and measurement slots
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End wall height contours
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End wall static pressures
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CFD predictions of blade pressure distributions
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Secondary vortices and loss at slot 6 (−29 percent Cax)
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Secondary vectors and loss at slot 8 (−3 percent Cax)
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Secondary vectors and loss at slot 10 (28 percent Cax)
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CFD predictions for secondary flow at slot 10
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Pitch-averaged loss coefficient at inlet
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Pitch-averaged results at slot 10
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Growth of secondary kinetic energy through the cascade
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End wall flow visualization

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