Unsteady Three-Dimensional Flow Behavior due to Rotor-Stator Interaction in an Axial-Flow Turbine PUBLIC ACCESS

[+] Author Affiliations
A. Yamamoto, F. Mimura

National Aerospace Laboratory, Chofu, Tokyo, Japan

J. Tominaga, S. Tomihisa, E. Outa, M. Matsuki

Waseda University, Shinjuku, Tokyo, Japan

Paper No. 93-GT-404, pp. V03CT17A065; 9 pages
  • ASME 1993 International Gas Turbine and Aeroengine Congress and Exposition
  • Volume 3C: General
  • Cincinnati, Ohio, USA, May 24–27, 1993
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7892-7
  • Copyright © 1993 by ASME


Detailed unsteady flow surveys were conducted before, within and after the second-stage stator passage of a 1.5-stage axial flow turbine by using a single slanted hot-wire anemometry. Among the results reported in the present paper, of particular interest are the behavior of the rotor wakes and the rotor free-streams within the stator passage, and the spacially three-dimensional and time-dependent convection or mixing process between lower- and higher- energy fluids. Effects of the rotor-stator interaction causing unsteady secondary flows and tip-leakage flow are also discussed.

Copyright © 1993 by ASME
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