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

9 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 publicationProceedings of ASME Fluids Engineering Division Summer Meeting 2006, FEDSM2006
PublisherAmerican Society of Mechanical Engineers
Pages817-825
Number of pages9
ISBN (Print)0791847500, 9780791847503
DOIs
StatePublished - 2006
Externally publishedYes
Event2006 ASME Joint U.S.- European Fluids Engineering Division Summer Meeting, FEDSM2006 - Miami, FL, United States
Duration: Jul 17 2006Jul 20 2006

Publication series

NameProceedings of ASME Fluids Engineering Division Summer Meeting 2006, FEDSM2006
Volume1 SYMPOSIA

Other

Other2006 ASME Joint U.S.- European Fluids Engineering Division Summer Meeting, FEDSM2006
Country/TerritoryUnited States
CityMiami, FL
Period7/17/067/20/06

ASJC Scopus subject areas

  • Engineering(all)

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