Results 21 to 30 of about 525,611 (329)

Micro heat exchanger by using MEMS impinging jets [PDF]

open access: yes, 1999
A micro impinging-jet heat exchanger is presented here. Heat transfer is studied for single jet, slot arrays and jet arrays. In order to facilitate micro heat transfer measurements with these devices, a MEMS sensor chip, which has an 8 x 8 temperature ...
Ho, C. M., Mai, J., Tai, Y. C., Wu, S.
core   +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

Heat transfer rate of swirling impinging jets issuing from a twisted tetra-lobed nozzle

open access: yesCase Studies in Thermal Engineering, 2020
Heat transfer augmentation by swirling impinging jets delivered through twisted tetra-lobed nozzles (T-LT) is reported. Impinging jets delivered through a circular nozzle (CT: non-swirling jet) and a tetra-lobed nozzle (LT: non-swirling jet) were also ...
Khwanchit Wongcharee   +3 more
doaj   +1 more source

CFD Analysis of Twin Turbulent Impinging Round Jets at Different Impingement Angles

open access: yesFluids, 2018
Round jets impinging at multiple impingement angles were considered for this study to gain better understanding of the parameters affecting resultant jet growth and velocity distribution.
Raj Narayan Gopalakrishnan   +1 more
doaj   +1 more source

A study on heat transfer characteristics by impinging jet with several velocities distribution

open access: yesCase Studies in Thermal Engineering, 2021
Impinging jet is well known as the most effective cooling method of a heated surface, since it has a high heat transfer coefficient. In this paper, the heated plate surface is going to be cooled by impinging jet through the heat transfer coefficient ...
Seydou Nourou Diop   +2 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

Cone angle effects on noise characteristics of jets impinging on conical obstacles

open access: yesAIP Advances, 2018
This paper presents an acoustic measurement experiment to investigate noise characteristics of jets impinging on conical obstacles of different cone angles.
Xin Liu   +3 more
doaj   +1 more source

Statistics of fully turbulent impinging jets [PDF]

open access: yes, 2016
Direct numerical simulations of sub- and supersonic impinging jets with Reynolds numbers of 3300 and 8000 are carried out to analyse their statistical properties. The influence of the parameters Mach number, Reynolds number and ambient temperature on the
Sesterhenn, Jörn, Wilke, Robert
core   +2 more sources

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

Effect of Hybrid Nanofluids Concentration and Swirling Flow on Jet Impingement Cooling

open access: yesNanomaterials, 2022
Nanofluids have become increasingly salient in heat transfer applications due to their promising properties that can be tailored to meet specific needs. The use of nanofluids in jet impingement flows has piqued the interest of numerous researchers owing ...
Ooi Jen Wai   +2 more
doaj   +1 more source

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