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RESEARCH PAPERS

A Review of Staggered Array Pin Fin Heat Transfer for Turbine Cooling Applications

[+] Author and Article Information
J. Armstrong, D. Winstanley

Mechanical Component Design, Garrett Turbine Engine Company, Phoenix, AZ 85010

J. Turbomach 110(1), 94-103 (Jan 01, 1988) (10 pages) doi:10.1115/1.3262173 History: Received February 19, 1987; Online November 09, 2009

Abstract

A review of heat transfer and flow friction data for staggered arrays of pin fins in turbine cooling applications is presented. This review presents discussions on local-and array-averaged heat transfer, the effects of different geometric parameters such as pin height and pin spacing on heat transfer and flow friction, and the effect of the accelerating flow in converging pin fin channels. A review of current heat transfer correlations is also presented with recommendations for correlating parameter limits and correlation accuracy. The correlations currently available for friction factor are reviewed, with an attempt to account for the effects of the converging channels.

Copyright © 1988 by ASME
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