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Mechanical Engineering Journal, 2020 The reliability of turbine blades and vanes of modern high temperature gas turbines is assured by turbine blade cooling technologies. Among the various cooling methods, film cooling has been a key technology to ensure the long-term operation of turbine ...
Kenichiro TAKEISHI +3 more
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Effects of Turbulence Promoters of Gas Turbine Blades on Film Cooling Performance
Journal of Thermal Science and Technology, 2012 The effects of orientation of turbulence promoting ribs in the internal cooling air passage on the film cooling performance of outer surface of gas turbine blades have been studied experimentally.
Yukiko AGATA +3 more
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Full Coverage Discrete Hole Wall Cooling: Cooling Effectiveness [PDF]
Volume 4: Heat Transfer; Electric Power, 1984 The development of a test facility for investigating full coverage discrete hole wall cooling for gas turbine combustion chamber wall cooling is described. A low temperature test condition of 750K mainstream temperature and 300K coolant temperature was used to investigate the influence of coolant flow rate at a constant cross flow Mach number ...
G.E. Andrews, M.L. Gupta, M.C. Mkpadi
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Numerical Study on Film-Cooling Effectiveness for Various Film-Cooling Hole Schemes
ASME-JSME-KSME 2011 Joint Fluids Engineering Conference: Volume 1, Symposia – Parts A, B, C, and D, 2011 Film-cooling has been widely used as the important alternative to protect the turbine blade. Since the film-cooling hole geometry is one of the most influential parameters for film-cooling performance, various film-cooling hole schemes have been developed to increase cooling performance for the past few decades.
S.M. Kim, K.D. Lee, K.Y. Kim
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Pressure Gradient Effects on Film Cooling [PDF]
Volume 4: Heat Transfer; Electric Power; Industrial and Cogeneration, 1995 Film cooling effectiveness was studied experimentally using a flat plate test facility with a single row of inclined round holes which injected high density, cryogenically cooled air. A pressure distribution representative of the suction side of a gas turbine blade was imposed on the test plate using a top wall contour.
Donald L. Schmidt, David G. Bogard
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Applied Sciences, 2017 The effects of dielectric barrier discharge (DBD) plasma on the film cooling effectiveness of a 30-degree slot was experimentally investigated in a low-speed wind tunnel.
Ye Jee Kim +3 more
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Effects of LoD and PoD in combined-hole film cooling [PDF]
, 2017 Film cooling technique was used to provide thermal protection for turbine components from the hot combustion gases. Combined-hole film cooling system was introduced as a way to improve the film cooling performances.
Abdullah, Mohammad Kamil +1 more
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Surrogate-based optimization of a cratered cylindrical hole to enhance film-cooling effectiveness
Journal of Thermal Science and Technology, 2016 A cratered film-cooling hole was investigated to determine the effect of shape parameters on film-cooling performance, and shape of the hole was optimized to improve film-cooling effectiveness.
Jun-Hee KIM, Kwang-Yong KIM
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Numerical Investigation on Film Cooling Mechanism with Different Coolant Delivery Configurations
Journal of Applied Fluid Mechanics, 2021 Kidney vortex has significant impact on film cooling effectiveness, and different kinds of film cooling hole geometry and configuration are developed to weaken or eliminate kidney vortex.
Y. T. Jiang +4 more
doaj
Numerical Computation and Optimization of Turbine Blade Film Cooling
Advances in Mechanical Engineering, 2014 The effect of film cooling parameters on the cooling effectiveness of an actual turbine blade is studied numerically. Film cooling parameters such as the hole shape, holes distribution, blowing ratio, streamwise angle, and spanwise angle are investigated
Ahmed M. Elsayed +2 more
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