Unsteady and Calming Effects Investigation on a Very High-Lift LP Turbine Blade—Part I: Experimental Analysis

[+] Author and Article Information
Thomas Coton, Tony Arts

Turbomachinery and Propulsion Department, von Karman Institute for Fluids Dynamics, 1640 Rhode-Saint-Genèse, Belgium

Michaël Lefebvre, Nicolas Liamis

Snecma Moteurs—Turbine Aero-Cooling Department, Center de Villaroche, 77550 Moissy Cramayel, France

J. Turbomach 125(2), 281-290 (Apr 23, 2003) (10 pages) doi:10.1115/1.1556013 History: Received December 21, 2001; Online April 23, 2003
Copyright © 2003 by ASME
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Sketch of the wake generator
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Distribution of the acceleration around the blade (based on fully turbulent NS computation)
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Profile loss evolution with wake frequency
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Loss coefficient maps (Reis,2=190,000)
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Heat transfer coefficient distributions (gb/c=1.235)
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Simultaneous raw heat transfer coefficient traces at Reis,2=190,000 (suction side)
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Space-time diagrams of hadim (a), STD (b), and HTFI (c) at Reis,2=190,000, Sr=0
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Phase-locked-averaged hadim:Reis,2=190,000,Sr=0.29 (a); Reis,2=650,000,Sr=0, (b); Reis,2=650,000,Sr=0.36 (c)
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Phase-locked-averaged hadim (a), STD (b), and HTFI (c) at Reis,2=350,000,Sr=0.29
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Phase-locked-averaged Δ(Reis,2=350,000,Sr=0.29)
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Time-averaged intermittency factor evolution
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Space-time evolutions of γ and Δ′ (Reis,2=190,000,Sr=0.29)
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Distribution of the intermittency factor based on Wu’s formulation (Reis,2=190,000,Sr=0.29)




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