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RESEARCH PAPERS

Effect of Streamline Curvature on Film Cooling

[+] Author and Article Information
R. E. Mayle, F. C. Kopper

Pratt and Whitney Aircraft, East Hartford, Conn.

M. F. Blair, D. A. Bailey

United Technologies Research Center, East Hartford, Conn.

J. Eng. Power 99(1), 77-82 (Jan 01, 1977) (6 pages) doi:10.1115/1.3446255 History: Received January 06, 1976; Online July 14, 2010

Abstract

The effects of streamline curvature on film cooling effectiveness are discussed. Experiments for air discharged through a slot and into a turbulent boundary layer along a flat, convex, and concave surface are described. Adiabatic wall effectiveness measurements on each surface for several blowing rates are presented. Boundary-layer velocity and temperature measurements are also presented for one of the blowing rates. Compared to the results for the flat surface, convex curvature is found to increase the adiabatic wall effectiveness whereas concave curvature is found to be detrimental.

Copyright © 1977 by ASME
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