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RESEARCH PAPERS

An Experimental Study of Fluid Flow in Disk Cavities

[+] Author and Article Information
S. H. Bhavnani, J. M. Khodadadi, J. S. Goodling

Department of Mechanical Engineering, Auburn University, Auburn, AL 36849-5341

J. Waggott

Advanced Engineering & Development, Dresser-Rand Steam Turbine, Motor, and Generator Division, Wellsville, NY 14895

J. Turbomach 114(2), 454-461 (Apr 01, 1992) (8 pages) doi:10.1115/1.2929165 History: Received February 20, 1991; Online June 09, 2008

Abstract

Results are presented for an experimental study of fluid flow in models of gas turbine disk cavities. Experiments were performed on 70-cm-dia 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 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 © 1992 by The American Society of Mechanical Engineers
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