Film cooling with normal injection into a supersonic flow

R. J. Goldstein, E. R.G. Eckert, D. J. Wilson

Research output: Contribution to journalArticlepeer-review

16 Scopus citations


A it experimental study of film cooling with subsonic gas injection into a ma instream witha Mach number of 2.90 is reported. Air, used us both the mainstream and secondary fluids, is injected normal to the surface of a flat plate through a short porous section into a two-dimensional turbulent boundary layer. The secondary fluid enters the boundary layer with a mass velocity which ranges from 0.0085 to 0.0223 of the free-stream value. The adiabatic wall temperatures are presented as the film-cooling effectiveness. The results of the present study, when the proper choice is made for the reference stale used to account for fluid property variations across the high-speed boundary layer, are in good agreement with previous investigations in incompressible flows.

Original languageEnglish (US)
Pages (from-to)584-588
Number of pages5
JournalJournal of Manufacturing Science and Engineering, Transactions of the ASME
Issue number4
StatePublished - 1968


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