Results 11 to 20 of about 368,323 (315)
Journal of turbomachineryWe present an experimental study of the impact of mainstream-to-coolant temperature ratio on overall cooling effectiveness. Experimental measurements of overall cooling effectiveness of a fully-cooled (internal and film) flat plate were performed in ...
James Cartlidge +3 more
semanticscholar +3 more sources
Effect of the Hot Streak on the Overall Cooling Performance of a Coated Rotor Blade
Energies, 2022 The influence of the HS (hot streak) and unsteady wake on the overall cooling performance of a rotor blade was studied in this paper. The results show that: (1) Both the magnitude and temperature of the HS gradually drops down as it passes downstream of ...
Li Shi, Yuanfeng Lu, Hanze Huang
doaj +2 more sources
Coatings, 2023 Modern gas turbines find extensive applications in aero engines, power generation, marine, and various other industries. Most numerical studies concentrate on turbine aero-thermal performance under different external conditions with vane or coupon; there
Li Shi +6 more
semanticscholar +2 more sources
The Effect of Using Ramps with Trench Cylindrical Holes on Film Cooling Effectiveness
Wasit Journal of Engineering Sciences, 2015 The effect of introducing ramp with a cylindrical slot hole on the film cooling effectiveness has been investigated experimentally and numerically. The film cooling effectiveness measurements are obtained experimentally.
Ahmed A. Imram +2 more
doaj +3 more sources
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
doaj +1 more source
Case Studies in Thermal Engineering, 2022 Backward film cooling can protect more efficiently some regions of turbine hot components, in comparison with the forward jet. The rapid increase of operational temperature requires the developments of the coupling of active cooling and thermal barrier ...
Jian Pu +4 more
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
Analysis of sweeping jet and film composite cooling using the decoupled model
Open Physics, 2023 The heat transfer process of the sweeping jet and film composite cooling (SJF) structure of the turbine blade leading edge is complex. The current work divides the overall cooling effectiveness of the SJF into the impingement heat transfer effectiveness,
Kong Xiangcan +6 more
doaj +1 more source
Case Studies in Thermal Engineering, 2022 Micro cooling utilizing the micro-sized cooling hole or a porous structure on the surface is a promising technology in cooling applications of gas turbine blades.
Mingeon Kim +3 more
doaj +1 more source