Title

THE EFFECT OF CONJUGATE HEAT TRANSFER ON FILM COOLING EFFECTIVENESS

Authors

Authors

M. Silieti; E. Divo;A. J. Kassab

Comments

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Abstract

The film cooling effectiveness of a two-dimensional gas turbine endwall is compared for the cases of conjugate heat transfer and an adiabatic wall condition using five common turbulence models. The turbulence models employed in this study are: the RNG k-epsilon model, the realizable k-epsilon model, the standard k-omega model, the SST k-omega model, and the RSM model. The computed flow field and surface temperature profiles along with the film effectiveness for one and two cooling slots at different injection angles are presented. The results show the strong effect of conjugate heat transfer on the film effectiveness compared to the adiabatic case and also compared to the effectiveness values obtained from analytically solvable models.

Journal Title

Numerical Heat Transfer Part B-Fundamentals

Volume

56

Issue/Number

5

Publication Date

1-1-2009

Document Type

Article

First Page

335

Last Page

350

WOS Identifier

WOS:000274198300001

ISSN

1040-7790

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