Results 31 to 40 of about 12,641 (263)
Propulsion and Power Research, 2012 In order to study the effect of cross-flow directions of an internal coolant on film cooling performance, the discharge coefficients and film cooling effectiveness with one inlet and double outlet hole injections were simulated.
Guangchao Li +4 more
doaj +1 more source
Energies, 2021 The forward expansion hole improves the film cooling effectiveness by reducing the penetration of the coolant jet into the main flow compared to the cylindrical holes.
Seung Il Baek, Jaiyoung Ryu, Joon Ahn
doaj +1 more source
Enhancement of Cooling Effectiveness with Mist Assisted Film Cooling
World Congress on Momentum, Heat and Mass Transfer, 2019 info:eu-repo/semantics ...
Biswal, Pratibha +2 more
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Numerical analysis and design optimization on full coverage film-cooling for turbine guided vane
Engineering Applications of Computational Fluid Mechanics, 2022 Based on numerical simulations, the heat transfer and flow field of a turbine vane are analyzed and the film cooling is improved. The optimization objective is increasing the overall cooling effectiveness with cascade pressure loss factors staying almost
Mingrui Wang +5 more
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Numerical study of effusion cooling on an adiabatic flat plate
Propulsion and Power Research, 2013 The present study aims to investigate the effectiveness of effusion film cooling on an adiabatic flat plate. Cylindrical holes of 30° inclination are used for supplying cold air to the hot primary flow. A non-dimensional parameter called the film cooling
Reaz Hasan, Agin Puthukkudi
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Effects of plasma actuation and hole configuration on film cooling performance
Propulsion and Power Research, 2023 In this paper, plasma actuators are arranged asymmetrically downstream the wall to improve film cooling performance. Effects of blowing ratio, hole configuration and applied voltage on flow characteristics and film cooling effectiveness were investigated
Jie Sun +4 more
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Machines, 2023 The jet always sweeps to the leftmost and rightmost points in the sweeping jet and film composite cooling (SJF) process, resulting in a different coolant flow in each film hole. The film can not easily cover the outer surface evenly under the scouring of
Xiangcan Kong +5 more
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Experimental Investigation Into Unsteady Effects on Film Cooling
Volume 4: Heat Transfer, Parts A and B, 2010 The benefits of different film cooling geometries are typically assessed in terms of their time averaged performance. It is known that the mixing between the coolant film and the main turbine passage flow is an unsteady process. The current study investigates the forms of unsteadiness which occur in engine-representative film cooling flows, and how ...
Fawcett, R +4 more
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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 spherical blockage configurations on film cooling
Thermal Science, 2018 With increasing inlet temperature of gas turbines, turbine blades need to be effectively protected by using cooling technologies. However, the deposition from the fuel impurities and dust particles in the air is often found inside film holes, which results in partial hole blockage.
Wang, Jin +4 more
openaire +3 more sources