Results 11 to 20 of about 17,682 (305)
An experimental investigation of a square supersonic jet and impinging jet on an inclined plate
Supersonic free jets and impinging jets are found in many engineering applications, such as short and vertical take-off and landing vehicles, cold gas dynamic spray processes, hot surface cooling mechanisms, and turbomachinery systems.
Thien Nguyen, Blake Maher, Yassin Hassan
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A novel compound multi-jet impingement system for enhanced cooling of a flat surface by augmenting its area with cylindrical protrusions (CPs) equipped with coaxial guide vanes (CGVs) and reducing deflection of jets by crossflow has been developed for ...
Ahmet Hikmet Untuç, Salih Ozen Unverdi
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A review of the most important findings for jets impingement on rotating target is presented, the focus is on the heat transfer and flow dynamics in these jets. These jet configurations are encountered in many industrial applications.
Huda Mohammed Alotaibi +4 more
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Flow Characteristics of Oblique Submerged Impinging Jet at Various Impinging Heights
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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CFD Analysis of Twin Turbulent Impinging Round Jets at Different Impingement Angles
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
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The wall shear stress produced by the normal impingement of a jet on a flat surface [PDF]
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
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Micro heat exchanger by using MEMS impinging jets [PDF]
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.
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Wall jet similarity of impinging planar underexpanded jets [PDF]
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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Statistics of fully turbulent impinging jets [PDF]
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
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Optimization of Dimples in Microchannel Heat Sink with Impinging Jets—Part B: the Influences of Dimple Height and Arrangement [PDF]
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
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