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TECHNICAL PAPERS

Improved Prediction of Turbomachinery Flows Using Near-Wall Reynolds-Stress Model

[+] Author and Article Information
G. A. Gerolymos, J. Neubauer, V. C. Sharma, I. Vallet

Université Pierre-et-Marie-Curie, 91405 Orsay, Paris, France

J. Turbomach 124(1), 86-99 (Feb 01, 2001) (14 pages) doi:10.1115/1.1426083 History: Received February 01, 2001
Copyright © 2002 by ASME
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References

Figures

Grahic Jump Location
Comparison of measured and computed (using the present RSM and the Launder-Sharma k−ε58) pitchwise-averaged flow-angle αM, total-pressure ptM, and turbulence-kinetic-energy kM for the NTUA_1 annular cascade (ṁ=13.2 kg s−1;Tu=4 percent; grid_D)
Grahic Jump Location
Comparison of Mach-number M̆ and turbulence-kinetic-energy k computed (using the present RSM and the Launder-Sharma k−ε58), at 25 percent span (ṁ=13.2 kg s−1;Tu=4 percent; grid_D)
Grahic Jump Location
Study of grid-convergence of computed (using the present RSM and the Launder-Sharma k−ε58) pitchwise-averaged flow-angle αM, and total-pressure ptM, at the exit of the NTUA_1 annular cascade (ṁ=13.2 kg s−1;Tu=4 percent)
Grahic Jump Location
Comparison of measured and computed (using the present RSM and the Launder-Sharma k−ε58) radial distributions of pitchwise-averaged flow-angle αxθM, and total-pressure ptM, for various operating points at design-speed, for NASA_37 rotor (ṁ=20.85, 20.79, 20.65, 20.51, 20.12, 19.78, 19.36 kg s−1 ; Tu=3 percent;δTC=0.356 mm; grid_D)
Grahic Jump Location
Computed (using the present RSM and the Launder-Sharma k−ε58) isentropic-Mach-number distributions at 70 percent span for various operating points at design-speed, for NASA_37 rotor (ṁ=20.85, 20.79, 20.65, 20.51, 20.12, 19.78, 19.36 kg s−1 ; Tu=3 percent,δTC=0.356 mm; grid_D)
Grahic Jump Location
Measured and computed (using the present RSM and the Launder-Sharma k−ε58) radial distributions of pitchwise-averaged total pressure ptM and flow angle αM for RWTH_1 turbine 1 1/2 stage (ṁ=8.23 kg s−1;Tu=3 percent;δTC=0.4 mm; grid_D)
Grahic Jump Location
Computed entropy and turbulent kinetic energy plots at various axial planes in the rotor of the RWTH_1 turbine 1 1/2 stage (ṁ=8.23 kg s−1;Tu=3 percent;δTC=0.4 mm; RSM grid_D)
Grahic Jump Location
Grid-influence on pitchwise-averaged absolute-flow angle αM at rotor-exit of RWTH_1 1 1/2 stage turbine (ṁ=8.23 kg s−1;Tu=3 percent;δTC=0.4 mm; grid_D)

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