Design of sister hole arrangements to reduce kidney vortex for film cooling enhancement
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Mechanical Science and Technology"
DOI: 10.1007/s12206-017-0745-5
Abstract: In this study, we investigated whether vortex control of forward and backward injection jets with different vortex strengths contributed to enhanced film cooling effectiveness. Various hole arrangements, composed of primary and sister holes, were used… read more here.
Keywords: film cooling; sister; hole arrangements; backward injection ... See more keywords
Adiabatic effectiveness and heat transfer measurements of simple and trenched cylindrical holes with backward injection
Sign Up to like & getrecommendations! Published in 2021 at "International Journal of Thermal Sciences"
DOI: 10.1016/j.ijthermalsci.2021.107086
Abstract: Abstract Recent studies have demonstrated that the simple cylindrical hole with backward injection, where the jets are injected reverse to the mainstream flow direction, outperforms its forward-injected counterpart at relative high blowing ratios. Meanwhile, trench… read more here.
Keywords: adiabatic effectiveness; injection; backward injection; trench ... See more keywords
Effect of Inlet Compound Angle of Backward Injection Film Cooling Hole
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DOI: 10.3390/en13040808
Abstract: Backward injection film cooling holes were studied to improve film cooling effectiveness using simple cylindrical holes, and this principle was applied to an actual gas turbine. Although film cooling effectiveness was improved using a backward… read more here.
Keywords: film cooling; backward injection; cooling hole; film ... See more keywords