Large Eddy Simulation of film cooling flow above a flat plate from inclined cylindrical holes

Ioulia V. Iourokina, Sanjiva K. Lele

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

Large Eddy Simulation of a realistic film cooling configuration is performed, consisting of a large plenum feeding a periodic array of short film cooling holes with length to diameter ratio L/d = 3.5. Film cooling jets are issued at 35 degrees into the turbulent crossflow boundary layer above the flat surface. Time-averaged flowfield is analyzed to reveal steady and unsteady structures occurring as a result of plenum-jet-crossflow interactions. Among these structures are the flow separation inside the film-hole, reverse flow zone right behind the jet injection and the counter-rotating vortex pair in the wake of the jet. All of these structures influence the wall temperature distribution and have a negative effect on film cooling effectiveness.

Original languageEnglish (US)
Title of host publication2006 ASME Joint U.S.-European Fluids Engineering Summer Meeting, FEDSM 2006
StatePublished - Dec 1 2006
Externally publishedYes
Event2006 2nd ASME Joint U.S.-European Fluids Engineering Summer Meeting, FEDSM 2006 - Miami, FL, United States
Duration: Jul 17 2006Jul 20 2006

Publication series

Name2006 ASME Joint U.S.-European Fluids Engineering Summer Meeting, FEDSM 2006
Volume2006

Other

Other2006 2nd ASME Joint U.S.-European Fluids Engineering Summer Meeting, FEDSM 2006
CountryUnited States
CityMiami, FL
Period7/17/067/20/06

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ASJC Scopus subject areas

  • Engineering(all)

Cite this

Iourokina, I. V., & Lele, S. K. (2006). Large Eddy Simulation of film cooling flow above a flat plate from inclined cylindrical holes. In 2006 ASME Joint U.S.-European Fluids Engineering Summer Meeting, FEDSM 2006 (2006 ASME Joint U.S.-European Fluids Engineering Summer Meeting, FEDSM 2006; Vol. 2006).