An Experimental Study of Fluid Flow in Disk Cavities PUBLIC ACCESS

[+] Author Affiliations
S. H. Bhavnani, J. M. Khodadadi, J. S. Goodling

Auburn University, AL

J. Waggott

Dresser-Rand Steam Turbine, Motor, and Generator Division, Wellsville, NY

Paper No. 91-GT-137, pp. V001T01A053; 9 pages
  • ASME 1991 International Gas Turbine and Aeroengine Congress and Exposition
  • Volume 1: Turbomachinery
  • Orlando, Florida, USA, June 3–6, 1991
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7898-9
  • Copyright © 1991 by ASME


Results are presented for an experimental study of fluid flow in models of gas turbine disk cavities. Experiments were performed on 70 cm diameter disks for rotational Reynolds numbers up to 2.29 × 106. Velocity and pressure distributions are presented and compared to previous theoretical and experimental studies for a free disk, and an unshrouded and shrouded plane rotor-stator disk system. Minimum coolant flow rates for the prevention of ingress, determined for the case of a simple axial rim seal, compare well with previously published data.

Copyright © 1991 by ASME
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