3-D Laser Anemometer Measurements in a Labyrinth Seal PUBLIC ACCESS

[+] Author Affiliations
G. L. Morrison, M. C. Johnson, G. B. Tatterson

Texas A&M University, College Station, TX

Paper No. 88-GT-63, pp. V001T01A025; 13 pages
  • ASME 1988 International Gas Turbine and Aeroengine Congress and Exposition
  • Volume 1: Turbomachinery
  • Amsterdam, The Netherlands, June 6–9, 1988
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7918-4
  • Copyright © 1988 by ASME


The flow field inside a seven cavity labyrinth seal with a 0.00127 m clearance was measured using a 3-D laser doppler anemometer system. Through the use of this system, the mean velocity vector and the entire Reynolds stress tensor distributions were measured for the first, third, fifth, and seventh cavities of the seal. There was one large recirculation region present in the cavity for the flow condition tested, Re = 28,000 and Ta = 7,000. The axial and radial mean velocities as well as all of the Reynolds stress term became cavity independent by the third cavity. The azimuthal mean velocity varied from cavity to cavity with its magnitude increasing as the flow progressed downstream.

Copyright © 1988 by ASME
Topics: Lasers
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