Measurements of mean flow and eddy transport over a film cooling surface

Ling Wang, Henry Tsang, Terrence W. Simon, Ernst R.G. Eckert

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Results of an experimental study of the effects of blowing Velocity Ratio (VR = 0.5 and 1.0) and Free-Stream Turbulence Intensity (FSTI = 0.5% and 12%) on turbulent transport over a film-cooling test surface are presented. The surface has a single lateral row of streamwise-oriented holes angled 35° from the surface and separated from one another by three hole diameters The film cooling flow and mainstream flow are at the same temperature and the film cooling is supplied through long delivery lubes. Velocity, turbulence intensity and eddy transport profiles are presented. The ratios of lateral eddy diffusivity to wall-normal eddy diffusivity values measured in this program (4-15) provide documentation of strong anisotropy of eddy transport in the flow.

Original languageEnglish (US)
Pages (from-to)71-79
Number of pages9
JournalAmerican Society of Mechanical Engineers, Heat Transfer Division, (Publication) HTD
Volume327
StatePublished - 1996

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