Heat Transfer and Effectiveness for a Turbulent Boundary Layer With Tangential Fluid Injection

[+] Author and Article Information
R. A. Seban

Mechanical Engineering Department, University of California, Berkeley, Calif.

J. Heat Transfer 82(4), 303-312 (Nov 01, 1960) (10 pages) doi:10.1115/1.3679938 History: Received September 03, 1959


Experimental results are presented for the effectiveness and for the heat-transfer coefficient for a film cooling system in which air was used both for the film and for the free-stream fluids. Injection occurred at a single tangential slot near the leading edge of the plate and the slot size was varied. All flows were turbulent and the injection velocities covered a range from much less to much greater than the free-stream velocity. Correlations are realized for both the effectiveness and for the heat-transfer coefficient and, as in the past experience with such systems, separate specifications are needed for injection velocities greater and less than the free-stream velocity.

Copyright © 1960 by ASME
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