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Unsteady Transition in an Axial Flow Turbine: Part 1 — Measurements on the Turbine Rotor PUBLIC ACCESS

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

Cambridge University

Paper No. 89-GT-289, pp. V001T01A102; 9 pages
doi:10.1115/89-GT-289
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

Previously published measurements in a low speed, single stage, axial flow turbine have been reanalysed in the light of more recent understanding. The measurements include time-resolved hot wire traverses and surface hot film gauge measurements at the midspan of the rotor suction surface with three different rotor-stator spacings. Part 1 investigates the suction surface boundary layer transition process using surface-distance time plots, and boundary layer cross sections to demonstrate the unsteady and two-dimensional nature of the process. Part 2 of the paper will describe the results of supporting experiments carried out in a linear cascade together with a simple transition model which explains the features seen in the turbine.

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

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