Results 21 to 30 of about 511,347 (352)

The wall shear stress produced by the normal impingement of a jet on a flat surface [PDF]

open access: yes, 2000
A method for the theoretical determination of the wall shear stress under impinging jets of various congurations is presented. Axisymmetric and two-dimensional incompressible jets of a wide range of Reynolds numbers and jet heights are considered ...
Flagan, Richard C.   +2 more
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

Numerical Study of the Normal Impinging Water Jet at Different Impinging Height, Based on Wray–Agarwal Turbulence Model

open access: yesEnergies, 2020
As a kind of water jet technology with strong impinging force and simple structure, the submerged impinging water jet can produce strong scouring action on subaqueous sediments.
Hongliang Wang   +4 more
doaj   +1 more source

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

Numerical investigation of combined effect of nanofluids and multiple impinging jets on heat transfer

open access: yesThermal Science, 2019
The present study is focused on numerical investigation of heat enhancement and fluid-flow from a heated surface by using nanofluids with three impinging jets.
M. Kiliç, H. Muhammad
semanticscholar   +1 more source

Relevance of Free Jet Model for Soil Erosion by Impinging Jets

open access: yes, 2020
The surface erosion of soil samples caused by an impinging jet can be analyzed using the jet erosion test (JET), a standard experimental test to characterize the erosion resistance of soils...
Z. Benseghier   +5 more
semanticscholar   +1 more source

Large-scale instabilities in a STOVL upwash fountain [PDF]

open access: yes, 2005
The fountain flow created by two underexpanded axisymmetric, turbulent jets impinging on a ground plane was studied through the use of laser-based experimental techniques. Velocity and turbulence data were acquired in the jet and fountain flow regions
Cabrita, P. M.   +2 more
core   +1 more source

Presence and properties of acoustic peaks near the nozzle of impinging rocket jets

open access: yesActa Acustica, 2022
The presence and properties of acoustic peaks near the nozzle of impinging rocket jets have been investigated. Four jets at a Mach number of 3.1 impinging on a plate at a distance L = 15r0, 20r0, 25r0 and 30r0 from the nozzle, where r0 is the nozzle ...
Varé Mathieu, Bogey Christophe
doaj   +1 more source

Impinging jets – a short review on strategies for heat transfer enhancement

open access: yesE3S Web of Conferences, 2018
In industrial applications, heat and mass transfer can be considerably increased using impinging jets. A large number of flow phenomena will be generated by the impinging flow, such as: large scale structures, large curvature involving strong shear and ...
Nastase Ilinca, Bode Florin
doaj   +1 more source

Computational study of the application of Al2O3 nanoparticles to forced convection of high-Reynolds swirling jets for engineering cooling processes

open access: yesEngineering Applications of Computational Fluid Mechanics, 2021
Numerical modeling of turbulent impinging swirling jets involve complex flow physics that make their computation still very challenging. Thus, the literature on computational modeling of these nanofluid jets is really scarce, with most works on laminar ...
F.-J. Granados-Ortiz   +2 more
doaj   +1 more source

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