Results 11 to 20 of about 2,086 (175)

Sweeping jet impingement heat transfer on a simulated turbine vane leading edge

open access: yesJournal of the Global Power and Propulsion Society, 2018
With the development of additive manufacturing technology, it is now possible to design complex and integrated internal cooling architecture for a gas turbine engine.
Mohammad A. Hossain   +4 more
doaj   +2 more sources

Heat Transfer Enhancement of Impingement Cooling by Adopting Circular-Ribs or Vortex Generators in the Wall Jet Region of A Round Impingement Jet

open access: yesInternational Journal of Turbomachinery, Propulsion and Power, 2020
In the near future, when designing and using Double Wall Airfoils, which will be manufactured by 3D printers, the positional relationship between the impingement cooling nozzle and the heat transfer enhancement ribs on the target plate naturally becomes ...
Ken-Ichiro Takeishi   +3 more
doaj   +2 more sources

Cooling enhancement for engine parts using jet impingement [PDF]

open access: yesFrontiers in Mechanical Engineering
A computational study has been performed to evaluate the use of jet impingement for cooling applications in the automotive industry. The current study uses an entire internal combustion engine cylinder with its components as a computational domain.
G. Nasif   +3 more
doaj   +2 more sources

Cooling Characteristic of a Wall Jet for Suppressing Crossflow Effect under Conjugate Heat Transfer Condition

open access: yesAerospace, 2022
The leading edge is the critical portion for a gas turbine blade and is often insufficiently cooled due to the adverse effect of Crossflow in the cooling chamber.
Qinghua Deng   +3 more
doaj   +1 more source

A Comparative Study of Film Cooling with Combined Impingement and Film Cooling [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2023
In order to cool the gas turbine vane or blade and raise the operating temperature, two standard convective cooling methods are used: jet impingement cooling and film cooling.
R. K. Panda, A. K. Pujari, B. Gudla
doaj   +1 more source

Cooling of rocket plume using aqueous jets during launching

open access: yesEngineering Applications of Computational Fluid Mechanics, 2022
With an increase in rocket motor thrust, the thermal loads on the launch platform by the impingement exhaust jet are significantly increased, this poses serious safety risks to rocket launch.
Zhitan Zhou   +3 more
doaj   +1 more source

Numerical simulation on heat transfer and entropy generation of impingement cooling on boss shaped surface

open access: yesXibei Gongye Daxue Xuebao, 2022
Using impingement jet to cool the external cavity of the end wall of the gas turbine guide blade is very effective for prolonging the service life of the gas turbine and ensuring its safety operation.
ZHANG Lixi, CAO Gaopan, ZHANG Zhengyang
doaj   +1 more source

Heat transfer enhancement to a confined impinging synthetic air jet [PDF]

open access: yes, 2013
Heat transfer to confined, un-ducted and ducted impinging synthetic air jets is investigated experimentally. The influence of ducting on the cooling performance of synthetic air jets is of particular interest.
O'Donovan, Tadhg; id_orcid   +1 more
core   +1 more source

Heat Transfer Enhancement by Mitigating the Adverse Effects of Crossflow in a Multi-Jet Impingement Cooling System in Hexagonal Configuration by Coaxial Cylindrical Protrusion—Guide Vane Pairs

open access: yesApplied Sciences, 2023
A novel compound multi-jet impingement system for enhanced cooling of a flat surface by augmenting its area with cylindrical protrusions (CPs) equipped with coaxial guide vanes (CGVs) and reducing deflection of jets by crossflow has been developed for ...
Ahmet Hikmet Untuç, Salih Ozen Unverdi
doaj   +1 more source

Heat exchange enhancement of jet impingement cooling with the novel humped-cone heat sink

open access: yesCase Studies in Thermal Engineering, 2021
Jet impingement cooling technology is applicable to control temperature of devices, where very high heat flux is generated within a small area. This paper is about the improvement of the jet impingement cooling efficiency by the heat sink geometry ...
Marcin Froissart   +3 more
doaj   +1 more source

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