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Enhancement of Film Cooling Effectiveness in a Supersonic Nozzle [PDF]

open access: yesEntropy, 2023
Film cooling as applied to rocket nozzles is analyzed numerically with emphasis on the assessment of the effect of the mixing of coolant with the hot stream.
Nithin Somasekharan   +5 more
doaj   +2 more sources

Parametric Studies of Laminated Cooling Configurations: Overall Cooling Effectiveness [PDF]

open access: yesInternational Journal of Aerospace Engineering, 2021
Combing the advantages of film cooling, impingement cooling, and enhanced cooling by pin fins, laminated cooling is attracting more and more attention.
Chen Wang, Chunhua Wang, Jingzhou Zhang
doaj   +2 more sources

Film Cooling Performance of a Cylindrical Hole with an Upstream Crescent-Shaped Block in Linear Cascade

open access: yesMachines, 2023
Recent works have already demonstrated that placing a crescent-shaped block upstream of a cylindrical hole could enhance the cooling performance of flat-plate films.
Chao Zhang   +5 more
doaj   +1 more source

Full Coverage Discrete Hole Wall Cooling: Cooling Effectiveness [PDF]

open access: yesVolume 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
openaire   +1 more source

Experimental Study of Heat Transfer Parameters of Impingement Heating System Represented by Conductive Target Plate of Resistive film [PDF]

open access: yesEngineering and Technology Journal, 2016
The current experimental study focuses on the heat transfer characteristics and pressure losses for impingement systemwhich is used in cooling the liner of gas turbine combustor.
Assim H. Yousif   +2 more
doaj   +1 more source

Experimental investigation of the film cooling performance by triangular-shaped thin plates on inclined cylindrical holes

open access: yesFrontiers in Energy Research, 2022
Experimental investigations have been conducted to improve the cooling effectiveness of film-cooling technology. A multiple row of cylindrical holes at the flat surface was considered by inclining the holes at 35° along the streamwise direction.
Jaemun Choi   +5 more
doaj   +1 more source

Heat Transfer and Flow Performance of Impingement and Impingement/Effusion Cooling Systems [PDF]

open access: yesEngineering and Technology Journal, 2015
The current experimental study is made to investigate the heat transfer characteristics and pressure losses for both impingement and impingement/effusion cooling systems.The experiments are carried out on a metal test plate.The numerical work is made to ...
Assim H. Yousif   +2 more
doaj   +1 more source

Influence of Gas-to-Wall Temperature Ratio on the Leakage Flow and Cooling Performance of a Turbine Squealer Tip

open access: yesAerospace, 2022
In high-pressure turbines, there is a large difference in temperature between the mainstream and the turbine blade surface. Most of the turbine blade tip heat transfer studies were conducted under the assumption that the Over-Tip-Leakage (OTL) flow field
Dongjie Yan   +6 more
doaj   +1 more source

Research on coupled heat transfer of film cooling in LOX/GH2 thrust chambers

open access: yesJournal of Thermal Science and Technology, 2018
To better understand the performance of gaseous film cooling near the injector region in the LOX/GH2 thrust chambers, a methodology is employed to simulate the coupled heat transfer of the film cooling in thrust chambers with regenerative cooling.
Jixin XIANG, Bing SUN
doaj   +1 more source

Analysis of sweeping jet and film composite cooling using the decoupled model

open access: yesOpen 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

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