Title

The Effect Of Conjugate Heat Transfer On Film Cooling Effectiveness

Abstract

We investigate the numerical prediction of film cooling effectiveness of a two-dimensional gas turbine endwall for the cases of conjugate and adiabatic heat transfer models. Further, the consequence of various turbulence models employed in the computation are investigated by considering various turbulence models: 'RNG1 k-ε. model, Realizable k-ε model, Standard k-ω model, 'SST' k-ω model, and '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 and blowing ratio of one are presented. The results show the strong effect of the conjugate heat transfer on the film effectiveness compared to the adiabatic and analytically derived formulae and show that turbulence model used significantly affects the film effectiveness prediction when separation occurs in the film hole and some level of jet lift-off is present. Copyright © 2004 by ASME.

Publication Date

1-1-2004

Publication Title

Proceedings of the ASME Heat Transfer/Fluids Engineering Summer Conference 2004, HT/FED 2004

Volume

4

Number of Pages

795-804

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1115/ht-fed2004-56234

Socpus ID

21544460694 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/21544460694

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