Detailed Measurements of Three-Dimensional Flows and Losses Inside an Axial Flow Turbine Rotor PUBLIC ACCESS

[+] Author Affiliations
Atsumasa Yamamoto

National Aerospace Laboratory, Tokyo, Japan

Junichi Tomlnaga, Takayuki Matsunuma, Eisuke Outa

Waseda University, Tokyo, Japan

Paper No. 94-GT-348, pp. V001T01A114; 9 pages
  • 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


Detailed traverse measurements of three dimensional flows and the associated losses inside a turbine rotor passage were carried out in the rotating frame of reference by using small five hole Pitot tubes. Strong secondary flows including passage vortices, a leakage vortex and various separation vortices were found to occur in the passage, and they are significantly influenced by the rotor speed, variation of which corresponds to different test incidences and blade loadings. Loss generation process in the rotor is described in relation to the migration of low energy fluids which are driven by the various vortices and their interaction at different rotor incidences.

Copyright © 1994 by ASME
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