Unsteady Transition in an Axial Flow Turbine: Part 2 — Cascade Measurements and Modelling PUBLIC ACCESS

[+] Author Affiliations
J. S. Addison, H. P. Hodson

Cambridge University

Paper No. 89-GT-290, pp. V001T01A103; 8 pages
  • 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


Part 1 of this paper reanalysed previously published measurements from the rotor of a low speed, single stage, axial flow turbine which highlighted the unsteady nature of the suction surface transition process. Part 2 investigates the significance of the wake jet and the unsteady frequency parameter. Supporting experiments carried out in a linear cascade with varying inlet turbulence are described together with a simple unsteady transition model explaining the features seen in the turbine.

Copyright © 1989 by ASME
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