Film-cooling effectiveness with injection through a porous section

R. J. Goldstein, G. Shavit, T. S. Chen

Research output: Contribution to journalArticlepeer-review

19 Scopus citations

Abstract

An experimental study of the effectiveness of film cooling following secondary air injection through a porous section into a turbulent free stream is presented. Boundary-layer velocity and temperature profiles are described. The adiabatic -wall temperatures are presented in terms of the film-cooling effectiveness. The effects of varying the secondary air temperature, the blowing rate, and the free-stream velocity are studied. It is found that the protection given to a surface downstream of a porous section through which air is injected compares favorably to earlier studies where the secondary air was injected nearly tangential to the surface.

Original languageEnglish (US)
Pages (from-to)353-359
Number of pages7
JournalJournal of Heat Transfer
Volume87
Issue number3
DOIs
StatePublished - Jan 1 1965

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