Film Cooling With Injection Through Holes: Adiabatic Wall Temperatures Downstream of a Circular Hole

[+] Author and Article Information
R. J. Goldstein, E. R. G. Eckert, J. W. Ramsey

Heat Transfer Laboratory, School of Mechanical and Aerospace Engineering, University of Minnesota, Minneapolis, Minn.

J. Eng. Power 90(4), 384-393 (Oct 01, 1968) (10 pages) doi:10.1115/1.3609223 History: Received December 19, 1967; Online August 25, 2011


An experimental investigation has been conducted to determine the film cooling effectiveness with injection of air through a discrete hole into a turbulent boundary layer of air on a flat plate. The secondary air enters at either an angle of 35 deg or an angle of 90 deg to the main flow. The film cooling effectiveness is found to be considerably different from that obtained in previous studies in which the secondary fluid was introduced through a continuous slot.

Copyright © 1968 by ASME
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