Boundary Layer Characteristics on the Buckets of a Large-Scale Turbine Stage: Part 1 — Profiles of Mean and Turbulent Velocity Vectors PUBLIC ACCESS

[+] Author Affiliations
W. H. Day

General Electric Co., Schenectady, NY

Paper No. 70-GT-59, pp. V01AT01A059; 18 pages
  • ASME 1970 International Gas Turbine Conference and Products Show
  • Volume 1A: General
  • Brussels, Belgium, May 24–28, 1970
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7985-6
  • Copyright © 1970 by ASME


Data have been obtained on details of the three-dimensional boundary layer flow on rotating turbine buckets using hot-wire anemometer and flow visualization techniques. Profiles of velocity magnitude and two angular directions are presented for both the mean and turbulent velocity vectors, as well as profiles of the three products of fluctuating velocities. The data were obtained along six flow paths covering the pressure and suction sides at three radial heights. A high degree of turbulence relative to the rotating buckets was found at all points in the boundary layer on both the pressure and suction sides. Also three-dimensional (radial flow) effects in the boundary layer were significant.

Copyright © 1970 by ASME
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