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RESEARCH PAPERS

Phase and Time-Resolved Measurements of Unsteady Heat Transfer and Pressure in a Full-Stage Rotating Turbine

[+] Author and Article Information
M. G. Dunn

Calspan-UB Research Center, Buffalo, NY 14225

J. Turbomach 112(3), 531-538 (Jul 01, 1990) (8 pages) doi:10.1115/1.2927691 History: Received January 23, 1989; Online June 09, 2008

Abstract

This paper presents detailed phase-resolved heat-flux data obtained on rotor blades and a comparison of simultaneously obtained time-resolved heat-flux and static pressure data obtained on the stationary shroud of a Garrett TFE 731-2 HP full-stage rotating turbine. A shock tube is used to generate a short-duration source of heated and pressurized air and platinum thin-film gages are used to obtain heat-flux measurements. Blade results are presented at several selected blade locations. Shroud surface pressure and heat-flux time histories are presented for comparable locations relative to the blade position. For these measurements, the turbine was operating at the design flow function, the design stage pressure ratio, and at 100 percent corrected speed.

Copyright © 1990 by The American Society of Mechanical Engineers
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