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TECHNICAL PAPERS

Numerical Investigation of Heat Transfer in Turbine Cascades With Separated Flows

[+] Author and Article Information
P. de la Calzada, A. Alonso

ITP, Industria de Turbo Propulsores S.A., Madrid, Spain

J. Turbomach 125(2), 260-266 (Apr 23, 2003) (7 pages) doi:10.1115/1.1556014 History: Received September 27, 2001; Online April 23, 2003
Copyright © 2003 by ASME
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References

Figures

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T106-300 cascade geometry and aerodynamic design conditions
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2-D hybrid mesh around the T106 blade—left: mesh on linear cascade; right: hybrid mesh around trailing edge
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LS89 blade isentropic Mach number distribution (Re2is=106,M2is=0.875)
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LS89 blade heat transfer distribution (Re2is=5.0×105,M2is=0.92,Tw=450 K)
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LS89 blade heat transfer distribution (Re2is=106,M2is=0.70,Tw=450 K)
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T106 profile pressure coefficient-No separation (Re2is=1.5×105,M2is=0.5,β1=127.7 deg,Tw=325 K)
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T106 profile pressure coefficient (Re2is=1.5×105,M2is=0.5,β1=105 deg,Tw=325 K)
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T106 profile pressure coefficient (Re2is=1.5×105,M2is=0.5,β1=90 deg,Tw=325 K)
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T106 pressure side local Stanton number—leading edge region enlarged (Re2is=1.5×1051=95, 100, 105, 127.7 deg, M2is=0.5,Tw=325 K)
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T106 pressure side local HTC (Re2is=1.5×1051=95, 100, 105, 127.7 deg, M2is=0.5,Tw=325 K)
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T106 pressure side local Cfx—absolute value (Re2is=1.5×1051=95, 100, 105, 127.7 deg, M2is=0.5,Tw=325 K)
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T106 pressure side thermal boundary layer-heated wall and adiabatic wall (Re2is=1.5×1051=105 deg,M2is=0.5,Tw=325 K)
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T106 pressure side local Stanton number (Re2is=1.5, 2, 3 and 4×1051=105 deg,M2is=0.1,Tw=325 K)
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T106 pressure side local HTC (Re2is=1.5, 2, 3, and 4×1051=105 deg,M2is=0.1,Tw=325 K)
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T106 pressure side local Cfx—absolute value (Re2is=1.5, 2, 3, and 4×1051=105 deg,M2is=0.1,Tw=325 K)
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T106 CFD flow pattern-velocity vectors—top: single vortex at M2is=0.1; bottom: two vortices at M2is=0.5(Re2is=1.5×1051=105 deg,Tw=325 K)
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T106 pressure side local Stanton number (Re2is=1.5×1051=105 deg,M2is=0.2, 0.3, 0.5, 0.7, Tw=325 K)
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T106 pressure side local HTC (Re2is=1.5×1051=105 deg,M2is=0.2, 0.3, 0.5, 0.7, Tw=325 K)

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