Results 11 to 20 of about 25,120 (234)

Wall jet similarity of impinging planar underexpanded jets [PDF]

open access: yesInternational 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
openaire   +2 more sources

Flow and heat transfer characteristics of a swirling impinging jet issuing from a threaded nozzle

open access: yesCase 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
doaj   +1 more source

Nanofluid impingement jet heat transfer [PDF]

open access: yesNanoscale Research Letters, 2012
Experimental investigation to study the heat transfer between a vertical round alumina-water nanofluid jet and a horizontal circular round surface is carried out. Different jet flow rates, jet nozzle diameters, various circular disk diameters and three nanoparticles concentrations (0, 6.6 and 10%, respectively) are used.
Zeitoun, Obida, Ali, Mohamed
openaire   +2 more sources

Effects of design parameters on a multi jet impinging heat transfer

open access: yesAlexandria 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
doaj   +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

Design Parameters on Impingement Steam Jet Heat Transfer of Continuous Liquid Food Sterilization

open access: yesFluids, 2022
The effect was clarified of the design parameters on the heat transfer of an impingement steam jet applied to continuous liquid food sterilization with the aim of high heating performance.
Wilasinee Sangsom, Chouw Inprasit
doaj   +1 more source

Thermoelectric Generation with Impinging Nano-Jets [PDF]

open access: yesEnergies, 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
openaire   +3 more sources

Evaluation and Optimization of the Oil Jet Lubrication Performance for Orthogonal Face Gear Drive: Modelling, Simulation and Experimental Validation

open access: yesEnergies, 2019
The oil jet lubrication performance of a high-speed and heavy-load gear drive is significantly influenced and determined by the oil jet nozzle layout, as there is extremely limited meshing clearance for the impinging oil stream and an inevitable blocking
Yu Dai   +4 more
doaj   +1 more source

CFD Simulation of a Temperature Control System for Galvanizing Line of Metal Band Based on Jet Cooling Heat Transfer

open access: yesApplied Sciences, 2020
The work focuses on the development of a thermo-fluid dynamic simulation model of a section of close cooling, called a jet cooler, inserted in the galvanizing line of metal band production.
Giovanni Carozzo   +3 more
doaj   +1 more source

Automatic eduction and statistical analysis of coherent structures in the wall region of a confine plane [PDF]

open access: yes, 2006
This paper describes a vortex detection algorithm used to expose and statistically characterize the coherent flow patterns observable in the velocity vector fields measured by Particle Image Velocimetry (PIV) in the impingement region of air curtains ...
A Agrawal   +23 more
core   +2 more sources

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