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- W2783756779 abstract "Film cooling is one of the most efficient mechanisms used in turbine blade cooling in order to prevent high temperature on the blade that could result in thermal failure in gas turbine technology. This study describes the analytical results of a new film cooling method utilize swirling coolant flow through rectangular twisted film cooling holes. Effectiveness condition was applied with air as a working fluid. Three different cross section areas of holes with different twisted hole area were examined and the results compared with standard circular holes. Swirling motion of the film coolant was induced by the twisted angle of film cooling holes, which was inclined at an angle α along the vertical direction. The holes angle α of the impingement main stream was changed from 90°, 65°, 45°, 30° and 20°. The film cooling effectiveness of the surface of the turbine blade wall was simulated using 3D Computational Fluid Dynamics (CFD) software. Results showed that the rectangular twisted hole has a better effectiveness among other cross section area of the hole at blowing ratio (0.25, until 4)." @default.
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- W2783756779 date "2015-05-31" @default.
- W2783756779 modified "2023-09-26" @default.
- W2783756779 title "Thermal Investigations on the Mixing Flow of Film Cooling by Twisted Holes" @default.
- W2783756779 doi "https://doi.org/10.15866/irecon.v3i2.5815" @default.
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