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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ASME 2006 2nd Joint U.S.-European Fluids Engineering Summer Meeting Collocated With the 14th International Conference on Nuclear Engineering
July 17–20, 2006
Miami, Florida, USA
Conference Sponsors:
- Fluids Engineering Division
ISBN:
0-7918-4750-0
PROCEEDINGS PAPER
Large Eddy Simulation of Film Cooling Flow Above a Flat Plate From Inclined Cylindrical Holes Available to Purchase
Ioulia V. Iourokina,
Ioulia V. Iourokina
Stanford University, Stanford, CA
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Sanjiva K. Lele
Sanjiva K. Lele
Stanford University, Stanford, CA
Search for other works by this author on:
Ioulia V. Iourokina
Stanford University, Stanford, CA
Sanjiva K. Lele
Stanford University, Stanford, CA
Paper No:
FEDSM2006-98282, pp. 817-825; 9 pages
Published Online:
September 5, 2008
Citation
Iourokina, IV, & Lele, SK. "Large Eddy Simulation of Film Cooling Flow Above a Flat Plate From Inclined Cylindrical Holes." Proceedings of the ASME 2006 2nd Joint U.S.-European Fluids Engineering Summer Meeting Collocated With the 14th International Conference on Nuclear Engineering. Volume 1: Symposia, Parts A and B. Miami, Florida, USA. July 17–20, 2006. pp. 817-825. ASME. https://doi.org/10.1115/FEDSM2006-98282
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