TY - GEN
T1 - Large Eddy Simulation of film cooling flow above a flat plate from inclined cylindrical holes
AU - Iourokina, Ioulia V.
AU - Lele, Sanjiva K.
PY - 2006
Y1 - 2006
N2 - 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.
AB - 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.
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M3 - Conference contribution
AN - SCOPUS:33845734625
SN - 0791837831
SN - 9780791837832
T3 - 2006 ASME Joint U.S.-European Fluids Engineering Summer Meeting, FEDSM 2006
BT - 2006 ASME Joint U.S.-European Fluids Engineering Summer Meeting, FEDSM 2006
T2 - 2006 2nd ASME Joint U.S.-European Fluids Engineering Summer Meeting, FEDSM 2006
Y2 - 17 July 2006 through 20 July 2006
ER -