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Superposition of Overall Cooling Effectiveness on a Turbine Blade Leading Edge
Volume 7: Heat Transfer: Combustors; Heat Transfer: Film CoolingAbstract Increasingly harsh turbine environments necessitate the design of more advanced cooling techniques as well as prediction of those cooling schemes’ performance at engine conditions. For several decades, film cooling design has been accelerated through a low-order superposition of adiabatic effectiveness in order to quickly ...
Bailey W. Hopkins, James L. Rutledge
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Infrared Assessment of Overall Effectiveness of a Modern Turbine Vane Cooling Scheme
46th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 2010An experimental approach is used to evaluate a baseline vane airfoil cooling configuration for advanced gas turbine engine application by incorporating arrays of two types of cooling holes at prescribed angles, spacing and sizes into large-scale flat plate specimens.
Jamie Johnson +7 more
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Experimental investigations on overall cooling effect of ribbed channel with air bleeds
International Journal of Heat and Mass Transfer, 2012Abstract An experimental investigation on overall heat transfer performance of a rectangular channel, in which one wall has periodically placed oblique ribs to enhance heat exchange and cylindrical film holes to bleed cooling air, has been carried out in a hot wind tunnel at different mainstream temperatures, hot mainstream Reynolds numbers, coolant ...
Jianhua Wang +4 more
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Journal of Turbomachinery
Abstract To keep metal temperature at allowable levels in modern gas turbine engines, both internal and external (film) cooling is necessary, which is represented by an overall cooling effectiveness. Previous studies measured overall cooling effectiveness for first-stage vanes in low-speed experiments, where it is appropriate to use ...
Matthew Krull, Stephen Lynch
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Abstract To keep metal temperature at allowable levels in modern gas turbine engines, both internal and external (film) cooling is necessary, which is represented by an overall cooling effectiveness. Previous studies measured overall cooling effectiveness for first-stage vanes in low-speed experiments, where it is appropriate to use ...
Matthew Krull, Stephen Lynch
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Transpiration Cooling: Contribution of Film Cooling to the Overall Cooling Effectiveness
International Journal of Turbo and Jet Engines, 1986G.E. Andrews +3 more
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Journal of Turbomachinery
Abstract Thermal design for the trailing edge of a turbine vane is critically challenging because the thinnest trailing-edge region has a low-thermal capacity, resulting in a much quicker thermal response to the hot gas. Cooling air for this region is usually extracted from the internal cooling passages inside the vane main body and thus
Xing Yang, Zihan Hao, Zhenping Feng
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Abstract Thermal design for the trailing edge of a turbine vane is critically challenging because the thinnest trailing-edge region has a low-thermal capacity, resulting in a much quicker thermal response to the hot gas. Cooling air for this region is usually extracted from the internal cooling passages inside the vane main body and thus
Xing Yang, Zihan Hao, Zhenping Feng
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Overall Cooling Effectiveness of Internally Cooled Additively Manufactured Blades
Conference Name: industryXchange 2025: Energy Location: State College, PA Start Date: 5/20/2025 12:00:00 AM End Date: 5/21/2025 12:00:00 AMRachel Ross +5 more
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Effects of trench configuration on the film cooling effectiveness of a fan-shaped hole
International Journal of Heat and Mass Transfer, 2021Jae Su Kwak
exaly