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TECHNICAL PAPERS

Midspan Flow-Field Measurements for Two Transonic Linear Turbine Cascades at Off-Design Conditions

[+] Author and Article Information
D. B. M. Jouini, S. A. Sjolander

Department of Mechanical and Aerospace Engineering, Carleton University, Ottawa, Ontario, K16 5B6, Canada

S. H. Moustapha

Pratt & Whitney Canada Inc., Longueuil, Quebec, Canada

J. Turbomach 124(2), 176-186 (Apr 09, 2002) (11 pages) doi:10.1115/1.1458576 History: Received December 14, 2000; Online April 09, 2002
Copyright © 2002 by ASME
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References

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Benner,  M. W., Sjolander,  S. A., and Moustapha,  S. H., 1997, “Influence of Leading-Edge Geometry on Profile Losses in Turbines at Off-Design Incidence: Experimental Results and an Improved Correlation,” ASME J. Turbomach., 119, Apr., pp. 193–200.
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Figures

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Carleton University blowdown wind tunnel 15
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Plan view of the cascade test section
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Summary of blades geometric parameters and nomenclature
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Cascade blade row measurement locations
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Cascade downstream total pressure at off-design incidence, i−ides=4.5 deg, HS1A cascade
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Effects of incidence and Mach number on axial velocity density ratio (AVDR)—(a) HS1A cascade, (b) HS1B cascade
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Comparison of HS1A and HS1B blade loadings at (a) design incidence for various exit Mach numbers, (b) 4.5 deg off-design incidence, and for various exit Mach numbers, (c) 10.0 deg off-design incidence, and for various exit Mach numbers
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Comparison of measured base pressure with Sieverding’s et al. correlation, HS1B cascade
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Variation of Base Pressure Coefficient with Incidence and Mach Number—(a) HS1A cascade, (b) HS1B cascade
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A comparison between the profile losses for HS1A and HS1B cascades at all test flow conditions
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Effects of off-design incidence on profile losses for both HS1A and HS1B cascades
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Effects of incidence and Mach number on exit flow angle—(a) HS1A cascade, (b) HS1B cascade

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