Heat Transfer and Pumping on a Rotating Disk With Freely Induced and Forced Cooling

[+] Author and Article Information
Darryl E. Metzger

Arizona State University, Tempe, Arizona

J. Eng. Power 92(3), 342-348 (Jul 01, 1970) (7 pages) doi:10.1115/1.3445359 History: Received December 23, 1969; Online July 14, 2010


An experimental study of the heat transfer characteristics of flows between a high speed rotating disk and a parallel stationary shroud is presented. Flow and disk heat transfer rates have been determined for various combinations and rates of freely induced and forced flows supplied at both the hub and rim of the disk. The study models a practically important class of turbine rotor cooling problems where small flow rates similar in magnitude to the disk pumping flows are of interest. The experimental facility and procedures are described in detail. They have been designed to facilitate rapid and economical acquisition of rotor cooling characteristics in situations where the particular rotor-shroud geometry makes existing correlations inadequate.

Copyright © 1970 by ASME
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