Using Sweep and Dihedral to Control Three-Dimensional Flow in Transonic Stators of Axial Compressors

[+] Author and Article Information
V. Gümmer, U. Wenger

Compressor Engineering, Rolls-Royce Deutschland Ltd. & Co. KG, Eschenweg 11, D-15827 Dahlewitz, Germany

H.-P. Kau

University of Technology Munich, Boltzmannstraße 15, D-85747 Munich, Germany

J. Turbomach 123(1), 40-48 (Feb 01, 2000) (9 pages) doi:10.1115/1.1330268 History: Received February 01, 2000
Copyright © 2001 by ASME
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Definition of sweep and dihedral on a compressor aerofoil
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Classical and sweep-induced secondary flow components
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Engine Section Stator (ESS) using conventional and advanced aerofoils
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Grid of the advanced ESS configuration
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ESS inlet conditions at the design point, 3DNS modeling and rig measurement
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ESS loading distribution at 5 percent blade height, 3DNS prediction, design point
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Relation of circumferentially averaged local flow (axial velocity × density) of the conventional and the advanced ESS, 3DNS prediction, design point
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Isentropic Mach number distribution and streamlines on the suction surface, loss distribution at the trailing edge plane, conventional and advanced ESS configuration, 3DNS prediction at near choke, design and near-stall condition
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Total averaged static pressure rise and loss coefficient, conventional and advanced ESS, high flow constant mean Mach number loop, 3DNS prediction
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ESS loading distribution at 5 percent blade height, 3DNS prediction and measurement, design point
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Loss coefficients in plane 2T, advanced ESS, 3DNS prediction and measurement, design point and near-stall condition
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Circumferentially averaged whirl angle and loss distribution in plane 2T, advanced ESS, 3DNS prediction and measurement, design point and near-stall condition
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Total averaged static pressure rise and loss in plane 2T, advanced ESS, 3DNS prediction and measurement



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