New Techniques for Measuring Film Cooling Effectiveness

[+] Author and Article Information
M. F. Blair

United Technologies Research Center, East Hartford, Conn.

R. D. Lander

Pratt & Whitney Aircraft Division, East Hartford, Conn.

J. Heat Transfer 97(4), 539-543 (Nov 01, 1975) (5 pages) doi:10.1115/1.3450425 History: Received April 07, 1975; Online August 11, 2010


Techniques to measure local film effectiveness distributions on large-scale models of turbine blade and vane sections were developed for use in subsonic, room-temperature wind-tunnel environments. Highly detailed film cooling effectiveness distributions were obtained on near-adiabatic, cast rigid foam test models using infrared radiometer scanning techniques. Sample results from both flat-plate film cooling studies and airfoil leading-edge film cooling studies are presented.

Copyright © 1975 by ASME
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