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Verification of an Impeller Design by Laser Measurements and 3D-Viscous Flow Calculations PUBLIC ACCESS

[+] Author Affiliations
H. Krain, W. Hoffman

DFVLR, Institut für Antriebstechnik, Köln, West Germany

Paper No. 89-GT-159, pp. V001T01A064; 8 pages
doi:10.1115/89-GT-159
From:
  • ASME 1989 International Gas Turbine and Aeroengine Congress and Exposition
  • Volume 1: Turbomachinery
  • Toronto, Ontario, Canada, June 4–8, 1989
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7913-9
  • Copyright © 1989 by ASME

abstract

Laser measurements and 3D-viscous calculations were performed to verify the design of a 30deg. backswept impeller with advanced blade geometry and high design rotor pressure ratio (πt12=4.7:1). Both, measured and calculated results are in good agreement. They are pointing to a low velocity area inside the rotor that vanishes toward the exit resulting in comparatively smooth discharge velocity profiles. The rotor geometry used for the verification is released. The application of the 3D-viscous calculation code now embedded in an impeller design procedure and its support by a number of pre- and postprocessing programs is described.

Copyright © 1989 by ASME
This article is only available in the PDF format.

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