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Heat transfer intensification by jet impingement – numerical analysis using RANS approach [PDF]
E3S Web of Conferences, 2019 Jet impingement is a method of the heat transfer enhancement applied in the engineering systems. The idea is to generate fast-flow fluid jet which impinge on the heated (or cooled) surface, causing significantly higher heat transfer rate.
Kura Tomasz +3 more
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Flow Characteristics of Oblique Submerged Impinging Jet at Various Impinging Heights
Journal of Marine Science and Engineering, 2022 To study the influence of impinging height H/D on the flow field characteristics of oblique submerged impinging jets, the numerical calculation of an oblique submerged impinging jet was carried out based on Wray–Agarwal (W–A) turbulence model.
Di Zhang +7 more
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Thermoelectric Generation with Impinging Nano-Jets [PDF]
Energies, 2021 In this study, thermoelectric generation with impinging hot and cold nanofluid jets is considered with computational fluid dynamics by using the finite element method. Highly conductive CNT particles are used in the water jets. Impacts of the Reynolds number of nanojet stream combinations (between (Re1, Re2) = (250, 250) to (1000, 1000)), horizontal ...
Selimefendigil, Fatih +2 more
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Numerical simulation of double jet impinging a flat and fixed wall with WALE model [PDF]
MATEC Web of Conferences, 2020 This work focuses on the study of the averaged velocity and the turbulent intensity of the double jet impingement is used to separate two adjacent cellule. Numerical LES investigations are carried out in this study.
Sahnoun Rachid +3 more
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Wall jet similarity of impinging planar underexpanded jets [PDF]
International Journal of Heat and Fluid Flow, 2020 Velocity profiles and wall shear stress values in the wall jet region of planar underexpanded impinging jets are parameterized based on nozzle parameters (stand-off height, jet hydraulic diameter, and nozzle pressure ratio). Computational fluid dynamics is used to calculate the velocity fields of impinging jets with height-to-diameter ratios in the ...
Fillingham, Patrick, Novosselov, Igor
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Heat transfer enhancement to a confined impinging synthetic air jet [PDF]
, 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
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Flow and heat transfer characteristics of a swirling impinging jet issuing from a threaded nozzle
Case Studies in Thermal Engineering, 2021 A new swirler to excite the swirling jet is proposed to achieve the uniform and efficient impingement cooling, that is, the inner wall of a circular hole is provided with four spiral grooves similar to the conventional circular hole with internal threads.
Liang Xu +6 more
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Effects of design parameters on a multi jet impinging heat transfer
Alexandria Engineering Journal, 2018 The main focus of this work is a synergistic heat transfer analysis of the impinging multi jets. The geometry of the jet holes, arrangement of those holes, density of the jets through spanwise and streamwise directions and type of the confinement are the
Perihan Culun +2 more
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Experimental Study of Heat Transfer Parameters of Impingement Heating System Represented by Conductive Target Plate of Resistive film [PDF]
Engineering 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
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Plane jets impinging on porous walls [PDF]
, 2002 The flow of a two-dimensional plane turbulent jet impinging on a porous screen has been studied experimentally. It is shown how the overall flow structure depends on the porosity of the surface. For low screen porosity (# < 0.41, say), transverse wall
Walklate, Peter, Castro, Ian, Cant, Ross
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