Results 31 to 40 of about 315 (116)
Effects of Diffusion Film Hole Exit Area on the Film Cooling Effectiveness
International Journal of Rotating Machinery, 2022 One popular method for the protection of gas turbines’ hot sections from high-temperature combustor gases is film cooling. Substantial amounts of research have been conducted to accomplish this task with the minimum cooling flow, maximum surface coverage,
Fan Yang, Mohammad E. Taslim
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Effect of Upstream Ramp on Film-Cooling effectiveness
International Journal of Emerging Trends in Engineering Research, 2021 Several techniques have been studied to improve the effectiveness of film cooling. One of these techniques involves the use of small obstacles to the removal holes injection. Objective of this study is to determine numerically the effect of the geometry and the obstacle position lover injection holes inclined 35 °, for the
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Near-Field Simulations of Film Cooling with a Modified DES Model
Inventions, 2020 Modeling the heat transfer characteristics of highly turbulent flow in gas turbine film cooling is important for providing better insights and engineering solutions to the film cooling problem. This study proposes a modified detached eddy simulation (DES)
Feiyan Yu, Savas Yavuzkurt
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Computational study of plasma actuator on film cooling performance for different shaped holes
AIP Advances, 2015 An investigation on film cooling holes with plasma actuators are performed for circular hole, expansion-shaped hole and fan-shaped hole on the surface of flat plate.
Sheng-ji Dai +6 more
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Prediction of Film Cooling Effectiveness of Steam [PDF]
Volume 4: Heat Transfer; Electric Power, 1982 The intent of this work is to show, analytically, that superheated steam can provide better film cooling than conventional air for gas turbine blades and vanes. Goldstein’s two-dimensional and Eckert’s three-dimensional models have been reexamined and modified in order to include the effects of thermal-fluid properties of foreign gas injection on the ...
Je-Chin Han, P. E. Jenkins
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Effects of Flow Oscillations in the Mainstream on Film Cooling
Inventions, 2018 The objective of this study is to investigate the effects of oscillations in the main flow and the coolant jets on film cooling at various frequencies (0 to 2144 Hz) at low and high average blowing ratios.
Seung Il Baek, Savas Yavuzkurt
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Experimental Optimization of the Compound Angled Asymmetric Laidback Fan Shaped Film Cooling Hole
Energies, 2022 In this study, the effect of shape variables on the film cooling effectiveness of the compound angled asymmetric laidback fan shaped hole was experimentally investigated, and the optimum values of select design variables were presented.
Ye Rim Jo, Jin Young Jeong, Jae Su Kwak
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International Journal of Aerospace Engineering, 2013 Film cooling is vital to gas turbine blades to protect them from high temperatures and hence high thermal stresses. In the current work, optimization of film cooling parameters on a flat plate is investigated numerically.
Ahmed M. Elsayed +2 more
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Theoretical and Numerical Study on Thermal Insulation Performance of Thermal Barrier Coatings
Energies, 2022 In this article, a theoretical 1-D heat transfer model and conjugate heat transfer numerical simulation was carried out to evaluate the thermal insulation of TBCs under different factors.
Chao Gao +3 more
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Film Cooling Effectiveness Data for Simple Injection Geometries: A Collection of Three-Axis Plots
International Journal of Rotating Machinery, 1994 A three-axis plot of laterally averaged film cooling effectiveness versus blowing rate and versus dimensionless distance downstream is a sufficiently compact representation of film cooling effectiveness data for injection through a row of holes or two ...
L. D. Stone, R. J. Goldstein
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