Impinging jets and droplet dynamics

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August undefined, 2024

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... Witryna22 maj 2012 · The maximum droplet spread diameter, velocity of the rebounding jet, and the time delay between droplet impact and jet emission were characterized for Weber numbers, We, based on droplet impact speed and diameter, up to 500. The unequal shear stresses and contact angles influence the maximum spread diameters in the …

Impinging Jets and Droplet Dynamics - NASA/ADS

Witryna1 kwi 2024 · The characteristics of horizontally opposed water jets in the absence and presence of an impinging air jet are investigated visually with high speed camera and quantitatively using phase Doppler ... Witryna1 sty 2024 · Impinging-jet atomization features a series of complicated dynamics, involving jet impingement, sheet formation, initiation and propagation of aerodynamic … dvd archives

Jet dynamics post drop impact on a deep pool - Semantic Scholar

Witryna30 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 … 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. In this fluid dynamics video, results from high fidelity numerical simulations are presented, which have been carried out to study the … dust recovery

[1210.3892] Impinging Jet Dynamics - arXiv.org

Dynamics of internal jets in the merging of two droplets of …

Witryna1 lut 2024 · Deendarlianto et al. (2016) experimentally studied the interfacial dynamics of the liquid droplet impact onto surface temperatures decreasing from 500°C to 100°C with inclined angles varied at 15°,30°, and 45°, and found that the surface roughness significantly affects the quenching behavior. Witryna14 paź 2011 · High-fidelity numerical simulations have been performed to study the formation and fragmentation of liquid sheets formed by two impinging jets using an … dvd architectures arteWitryna31 maj 2024 · Directing a jet of humid air to impinge on a surface that is cooled below the dew point results in micro-sized water droplets. Lord Rayleigh discussed the phenomenon by contrasting clean to flame-exposed glass and called such behaviour Breath Figures (BF). Historically, utilizing dew as a water source was investigated by … dust recycling

"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 … " - Impinging jets and droplet dynamics

Impinging jets and droplet dynamics

(PDF) Impinging Jet Dynamics - ResearchGate

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. 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 …

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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 … Witryna31 sie 2007 · For collisionsleading to absorption and partial absorption, for which part of the absorbed droplet is subsequently ejected from the film, rupture and hence merging of the interfaces were manually imposed at an instant that leads to agreement between the subsequent calculated and experimental images.

Witryna12 kwi 2024 · In this paper, we focus on the evolution of jets that form during the recoil of impinging drops on partially wetting hydrophilic substrates composed of cylindrical … 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) …

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 … WitrynaOne aspect of previous investigations that has received modest attention is the dynamics associated with the ver- tical jet that prevails during the droplet collapse portion of the impingement process. For a narrow range of We, very thin jets with attendant high velocity have been observed.

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 …

WitrynaTo rationalise the experimental observations, we develop a two-dimensional lubrication model of the droplet that incorporates the external pressure of the impinging high … dvd archiving systemWitrynaIn 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 patterns of sheet and rim configurations were presented to shed light into the underlying physics, including liquid chain, closed rim, open rim, unstable rim and flapping sheet. dust radiator hotWitrynaDroplet 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 … dust reducer machineWitryna13 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 … dust recommended modsWitryna2 gru 2024 · If the kinetic energy of falling droplets can be reduced, the waste caused by the Worthington jet and splashing droplets can be effectively reduced. The present study can lay basis for the design of the steam-water separator and the space droplet radiator. Download to read the full article text References dvd archivingWitryna28 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. dust regulations south africaWitryna16 lut 2024 · Published 16 February 2024. Physics, Engineering. We investigate experimentally the jet formed by the collapse of a cavity created by the impact of a drop on a pool of the same aqueous liquid. We show that jets can emerge with very different shapes and velocities, depending on the impact parameters, thus generating droplets … dvd argos player