Heat Transfer in an Air-Cooled Rotor–Stator System

[+] Author and Article Information
J.-X. Chen, X. Gan, J. M. Owen

School of Mechanical Engineering, University of Bath, Claverton Down, Bath, United Kingdom

J. Turbomach 118(3), 444-451 (Jul 01, 1996) (8 pages) doi:10.1115/1.2836686 History: Received February 09, 1994; Online January 29, 2008


This paper describes a combined experimental and computational study of the heat transfer from an electrically heated disk rotating close to an unheated stator. A radial outflow of cooling air was used to remove heat from the disk, and local Nusselt numbers were measured, using fluxmeters at seven radial locations, for nondimensional flow rates up to Cw = 9680 and rotational Reynolds numbers up to Reφ = 1.2 × 106 Computations were carried out using an elliptic solver with a low-Reynolds-number k–ε turbulence model, and the agreement between the measured and computed velocities and Nusselt numbers was mainly good.

Copyright © 1996 by The American Society of Mechanical Engineers
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