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Experimental and Numerical Investigation of Shock Wave Within a Swept Shrouded Propfan Rotor PUBLIC ACCESS

[+] Author Affiliations
Klaus Helming

DLR, Institute for Propulsion Technology, Cologne, Germany

Paper No. 94-GT-221, pp. V001T01A080; 9 pages
doi:10.1115/94-GT-221
From:
  • ASME 1994 International Gas Turbine and Aeroengine Congress and Exposition
  • Volume 1: Turbomachinery
  • The Hague, Netherlands, June 13–16, 1994
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7883-5
  • Copyright © 1994 by ASME

abstract

Laser velocity measurements are conducted in a swept propfan rotor in order to investigate the local transonic flow region on the suction surface at high subsonic inlet Mach numbers. The velocity measurements are accompanied by a 3D-Navier-Stokes calculation for a selected operating point. The good agreement between computed and measured flow field gives some confidence to study the local three-dimensional passage shock on the suction surface by using the numerical procedure. Apart of the computed three-dimensional shock structure is investigated in detail. By considering streamlines it is concluded whether the shock wave is normal or oblique. The results are compared with the one-dimensional shock conditions.

Copyright © 1994 by ASME
Topics: Shock waves , Rotors
This article is only available in the PDF format.

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