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Experimental Analysis of the Effect of Swirl on the Pressure Field in Whirling 50% Eccentric Annular Seal

[+] Author Affiliations
Bernard Robic


Gerald Morrison

Texas A&M University

Paper No. 2000-GT-0286, pp. V003T01A090; 13 pages
  • ASME Turbo Expo 2000: Power for Land, Sea, and Air
  • Volume 3: Heat Transfer; Electric Power; Industrial and Cogeneration
  • Munich, Germany, May 8–11, 2000
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7856-9
  • Copyright © 2000 by ASME


This work presents measurements of the dynamic and mean pressure distributions on the stator wall of a 50% eccentric whirling annular seal for three different pre-swirl conditions: −45, 0 and +45 degrees and two flow cases, Taylor number of 6,600/Reynolds number of 12,000 and Taylor number of 3,300/Reynolds number of 24,000. A data reduction calculation of the forces and moments generated by the pressure field has been performed, and a description of the effect of swirl on the pressure field has been presented.

Copyright © 2000 by ASME



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