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RESEARCH PAPERS

Turbulence Measurements and Secondary Flows in a Turbine Rotor Cascade

[+] Author and Article Information
D. G. Gregory-Smith

School of Engineering and Applied Science, University of Durham, Durham DH1 3LE, United Kingdom

J. A. Walsh

Logica Space and Defence Systems Ltd., London W1A 4SE, United Kingdom

C. P. Graves

Gilbert Gilkes and Gordon Ltd., Cumbria LA9 7BZ, United Kingdom

K. P. Fulton

Rolls-Royce plc, Derby DE2 8BJ, United Kingdom

J. Turbomach 110(4), 479-485 (Oct 01, 1988) (7 pages) doi:10.1115/1.3262221 History: Received June 24, 1987; Online November 09, 2009

Abstract

This paper presents results for turbulence measurements that have been made using hot-wire anemometry in the endwall region of a high turning rotor blade cascade. It is shown that the levels of turbulence are very high in the regions of the flowfield containing the passage vortex and its associated loss core. A comparison with the total pressure loss measurements illustrates the mechanisms of loss generation within the cascade. The growth of turbulent kinetic energy was much less than the growth of loss indicating significant viscous dissipation.

Copyright © 1988 by ASME
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