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TECHNICAL PAPERS

Improving the Efficiency of the Trent 500-HP Turbine Using Nonaxisymmetric End Walls—Part I: Turbine Design

[+] Author and Article Information
G. Brennan, N. W. Harvey, M. G. Rose, N. Fomison, M. D. Taylor

Turbine Systems, Rolls-Royce plc, Derby, UK

J. Turbomach 125(3), 497-504 (Aug 27, 2003) (8 pages) doi:10.1115/1.1450766 History: Received November 14, 2000; Online August 27, 2003
Copyright © 2003 by ASME
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References

Figures

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Plot of control points along the mesh
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HP NGV with profiled end wall
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NGV variation in hub (a) radial height (m), (b) surface static pressure (Pa)
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Mass-averaged SKEH for NGV along axial direction; note: NGV trailing edge starts at axial position −2mm (not shown here)
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Contours of SKEH at NGV exit—(a) base, (b) PEW design
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Absolute whirl angle at NGV exit
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NGV isentropic Mach no. at 10 percent height
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HP rotor with profiled end walls
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Rotor hub variation in (a) radial height (m), (b) surface static pressure (Pa)
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HP rotor mass-averaged SKEH in axial direction; note: rotor trailing edge starts at axial position 28 mm  
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Contours of SKEH at rotor exit—(a) base (b) PEW design
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Relative whirl angle at rotor exit
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HP rotor hub isentropic Mach no. (10% height)

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