Experimental and Numerical Investigation of Three-Dimensional Viscous Flows and Vortex Motion Inside an Annular Compressor Blade Row

[+] Author and Article Information
H. E. Gallus, H. D. Schulz

Institut für Strahlantriebe und Turboarbeitsmaschinen, RWTH Aachen, Federal Republic of Germany

C. Hah

GE Research & Development Center, Schenectady, NY

J. Turbomach 113(2), 198-206 (Apr 01, 1991) (9 pages) doi:10.1115/1.2929083 History: Received January 26, 1990; Online June 09, 2008


A detailed experimental and numerical investigation was carried out to examine the three-dimensional flow field, secondary flows, and vortex motion in an annular compressor cascade. Various flow visualizations near the blade surface and endwalls, wall static pressure and loss measurements, as well as hot-film and hot-wire measurements inside the blade boundary layers were performed at various flow rates to understand the complex flow phenomena. A Reynolds-averaged Navier–Stokes equation was solved to investigate the flow numerically. The detailed comparison between measurement and numerical prediction indicates that the complex three-dimensional flow phenomena (corner stall, vortex motion, radial mixing, etc.) are very well predicted with the numerical method.

Copyright © 1991 by The American Society of Mechanical Engineers
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