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A Review on Experimental and Numerical Investigations of Jet Impingement Cooling Performance with Nanofluids [PDF]

open access: yesMicromachines, 2022
Nanofluids offer great potential heat transfer enhancement and provide better thermophysical properties than conventional heat transfer fluids. Application of nanofluids in jet impingement cooling is used for many industrial and scientific purposes as it
Ooi Jen Wai   +2 more
doaj   +2 more sources

Statistics of fully turbulent impinging jets [PDF]

open access: yesJournal of Fluid Mechanics, 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   +4 more sources

Optimization of Dimples in Microchannel Heat Sink with Impinging Jets—Part B: the Influences of Dimple Height and Arrangement [PDF]

open access: yesJournal of Thermal Science, 2018
The combination of a microchannel heat sink with impinging jets and dimples (MHSIJD) can effectively improve the flow and heat transfer performance on the cooling surface of electronic devices with very high heat fluxes.
Cai, C   +5 more
core   +2 more sources

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

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   +2 more sources

CFD analysis of heat transfer enhancement in impinging jet array by varying number of jets and spacing [PDF]

open access: yesScientific Reports
Using the RANS approach with the standard k-ω turbulence model, this study offers a novel investigation into the dynamic and thermal properties of turbulent impinging jet arrays.
Zakia Rachdi   +5 more
doaj   +2 more sources

Experimental investigation of the near-surface flow dynamics in downburst-like impinging jets

open access: yesEnvironmental Fluid Mechanics, 2022
Downbursts are strong downdrafts that originate from thunderstorm clouds and create vigorous radial outflows upon hitting the ground. This study is part of the comprehensive experimental research on downburst outflows produced as large-scale impinging ...
F. Canepa   +4 more
semanticscholar   +1 more source

A numerical simulation of high-Reynolds-number opposed impinging wall water jets in a limited field

open access: yesAIP Advances, 2023
In the impinging region of opposing jets, strong mixing and significant energy dissipation are observed, but the mixing parameters invariably change with the opposed impinging strength (OIS). In this paper, the ratio of the turbulent kinetic energy (TKE)
Haoran Liang   +4 more
doaj   +1 more source

Flow and heat transfer characteristics of blooming jets impinging upon wall using DNS

open access: yesJournal of Fluid Science and Technology, 2020
A single impinging jet exhibits high heat transfer performance around an impingement point on a wall. However, the heat transfer performance deteriorates as it moves away from the impingement point.
Kentaro ECHIGO   +3 more
doaj   +1 more source

Enhancing Jet Array Heat Transfer: Review of Geometric Features of Nozzle and Target Plates

open access: yesInternational Journal of Thermofluids, 2022
Adequate cooling of electronic components and packages is an ever-increasing challenge as devices become more powerful, compact, and portable. Highly integrated and high-performance solutions are sought across a wide range of industrial and commercial ...
T. Prevost   +3 more
doaj   +1 more source

Heat transfer characteristics of single row of jets issuing from screw-thread nozzles impinging on a concave surface

open access: yesCase Studies in Thermal Engineering, 2021
Based on the combination of experiment and numerical analysis, the heat transfer characteristics of single row of swirling jets impinging on a concave semi-cylindrical surface are studied.
Liang Xu   +5 more
doaj   +1 more source

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