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Impinging jets and droplet dynamics

WitrynaIn sodium-cooled fast reactors, liquid sodium leakage from piping may lead to fire accident. In the case that the liquid sodium is discharged as a liquid jet, a number of droplets are produced during liquid jet impingement on the structures; the surfaces of splashed droplets serve as a main reaction field of sodium combustion. In the present … Witryna20 kwi 2006 · In a high-speed subsonic jet impinging on a flat plate, the surface pressure fluctuations have a broad spectrum due to the turbulent nature of the high …

Impinging Jets and Droplet Dynamics - arXiv

WitrynaThe current work experimentally investigates the flowfield characteristics of an under-expanded turbulent jet impinging on a solid surface for various nozzle-to-plate distances 2.46 D j , 1.64 D j , and 0.82 D j ( D j is the jet hydraulic diameter), and nozzle pressure ratios (NPRs) ranging from 2 to 2.77 . Planar particle image velocimetry (PIV) … Witryna5 lis 2024 · In this chapter, spray cooling is reviewed from two aspects: the entire spray (spray level) and droplets (droplet level). The discussion on the spray level is focused on the spray cooling performance as a function of fluid properties, flow conditions, surface conditions, and nozzle positioning. northeastern log cabins https://twistedjfieldservice.net

Penetration and ligament formation of viscoelastic droplets

Witryna19 sty 2024 · Within the laboratory dynamic icing tests, the SS1 SHSs with micromountain heights of 20–30 μm performed optimally in the antiadhesion of supercooled droplets (at an impinging velocity of 3.4 … Witryna10 lip 2016 · The objective of this study is to characterize flow parameters for two-dimensional turbulent jets impinging on a flat surface. An integral form of the momentum equation has been used to obtain a ... Witryna28 lis 2024 · The effect of plasma fluctuations on the in-flight droplet/particle behavior was studied by Dalir et al. [16,17,18]. It was shown that suspension penetration depth, as well as droplet/particle trajectory, temperature, and velocity, are a strong function of plasma jet fluctuations and injection properties such as injection velocity. northeastern lumber

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Category:Impinging Jet Dynamics - NASA/ADS

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Impinging jets and droplet dynamics

Droplet dynamics under an impinging air jet Journal of Fluid ...

WitrynaTo rationalise the experimental observations, we develop a two-dimensional lubrication model of the droplet that incorporates the external pressure of the impinging high … Witryna7 sty 2024 · The impact of a drop onto a stagnant deep liquid pool results in jet formation in the splashing regime. The perturbations in the free surface alter the impact conditions and change the splash dynamics. We present the simulations of the water drop impact onto a deep liquid pool with a moving free surface.

Impinging jets and droplet dynamics

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Witryna14 paź 2011 · Abstract: In this fluid dynamics video, results from high fidelity numerical simulations are presented, which have been carried out to study the flow and droplet … Witryna19 kwi 2016 · The head-on collision, merging and internal mixing dynamics of two unequal-sized droplets were experimentally studied and interpreted, using water, n …

WitrynaTheir experiments revealed three distinct behaviours of the droplet: droplet oscillating in place, splitting and depinning to one side of the jet, depending on the strength and … Witrynadroplet dynamics of liquid sheets formed by two impinging jets. A three-dimensional Volume-of-Fluid (VOF) method with adaptive mesh re nement (AMR) based on octree …

WitrynaImpinging Jets and Droplet Dynamics. 18,988 views. Oct 18, 2011. 140 Dislike Share Save. Xiaodong Chen. 247 subscribers. Video from "Impinging Jets and Droplet … Witryna1 lis 2024 · Impinging-jet injectors are widely used in liquid propulsion applications, since their simple configuration provides reliable and efficient atomization. The flowfield involves a series of...

WitrynaIn this fluid dynamics video, Ray-tracing data visualization technique was used to obtain realistic and detailed flow motions during impinging of two liquid jets. Different …

WitrynaDroplet dynamics under an impinging air jet Partially wetting droplets under an airflow can exhibit complex behaviours that arise from the coupling of surface tension, inertia … how to restore vaio laptopWitryna13 paź 2024 · The dynamic characteristics of droplets impinging on the cylinder were observed to be similar to those of droplets impinging on horizontal plates of the same … how to restore vachetta leatherWitryna1 sie 2024 · For example, a large contact area between the impinging droplet and target surface can enhance the heat transfer in spray cooling systems (Breitenbach et al., 2024) and minimizing the droplet–surface contact area is beneficial to delay, or even suppress ice nucleation in anti-icing applications (Mishchenko et al., 2010; Maitra et … how to restore va loan entitlementWitryna25 lip 2024 · one-way coupling of the e xter nal pressure from the impinging jet on the droplet, which allows us to treat the jet pr ofile as steady and independent of the … northeastern luzonnortheastern lumber njWitryna1 sty 2024 · Impinging-jet atomization features a series of complicated dynamics, involving jet impingement, sheet formation, initiation and propagation of aerodynamic … how to restore vintage cast iron skilletWitryna30 lis 2015 · The impact of droplets on a deep pool has applications in cleaning up oil spills, spray cooling, painting, inkjet printing, and forensic analysis, relying on the changes in properties such as viscosity, interfacial tension, and density. Despite the exhaustive research on different aspects of droplet impact, it is not clear how liquid … how to restore usb stick