Effect of vortex circulation on injectant from a single film-cooling hole and a row of film-cooling holes in a turbulent boundary layer: part 1: injection beneath the vortex downwash
Craig, Douglas William
Ligrani, Phillip M.
Subramanian, Chelakara S.
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The effects of longitudinal vortices on film-cooling injectant from a single injection hole and from a row of injection holes in a turbulent boundary layer are investigated. Attention is focused on the effects of vortex circulation when the injection hole is located beneath the vortex downwash. Heat transfer measurements, mean velocity and mean temperature surveys, and surface flow visualization results are discussed. The embedded vortex considerably disturbs the injectant when r/(Uc.d) is greater than 1.0, where r is the vortex circulation, Uc is the injectant mean velocity and d is the injection hole diameter.
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Effect of vortex circulation on injectant from a single film-cooling hole and a row of film-cooling holes in a turbulent boundary layer, Part 2: injection beneath the vortex upwash Kaisuwan, Pisut (Monterey, California. Naval Postgraduate School, 1989-12);Results are presented which illustrated the effects of single embedded longitudinal vortices on heat transfer and injectant downstream of a row of film-cooling holes and downstream of a single hole in a turbulent boundary ...
Williams, Warren W. (Monterey, California : Naval Postgraduate School, 1988-06);Effects of embedded longitudinal vortices on heat transfer in a turbulent boundary layer film cooled from a single injection hole are discussed. Film coolant was injected at blowing ratios 0.50 to 1.50 at a freestream velocity ...
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