Effect of Mainstream Variables on Jets Issuing from a Row of Inclined Round Holes

[+] Author and Article Information
K. Kadotani

Komatsu, Ltd., Kawasaki, Japan

R. J. Goldstein

University of Minnesota, Minneapolis, Minn.

J. Eng. Power 101(2), 298-304 (Apr 01, 1979) (7 pages) doi:10.1115/1.3446486 History: Received December 27, 1977; Online July 14, 2010


The effects of boundary layer thickness, Reynolds number and free stream turbulence intensity on jets issuing from a row of inclined holes are investigated from the viewpoint of film cooling. The local film cooling effectiveness and mean velocity and mean temperature distributions are measured. The turbulent eddy diffusivities are evaluated from calculations based on a heat source model. The boundary layer thickness and the free stream turbulence significantly influence the jet-mainstream interaction process and consequently the film cooling performance.

Copyright © 1979 by ASME
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