Impinging jets and droplet dynamics

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... 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 …

Dynamics of oil droplet impacting and wetting on the inclined …

Witryna24 cze 2024 · The dynamic interaction of droplets with slippery surfaces is essential to various industrial applications, such as anti-icing, water-repellency or water … WitrynaImpinging jets at low velocities form initially a sheet in a plane perpendicular to the plane containing the momentum vectors of the jets, as seen on Fig. 1. Waves are formed on the surface of this sheet and grow until sheet fragmentation into ligaments at a certain breakup length, which eventually break into droplets (Fakhri et al., 2010). chithrakuzhal https://weltl.com

Numerical Investigation of Very Low Reynolds Cross Orifice Jet for ...

WitrynaTo rationalise the experimental observations, we develop a two-dimensional lubrication model of the droplet that incorporates the external pressure of the impinging high … Witryna22 wrz 2024 · Dynamics of single droplets impacting on solid surfaces is a fascinating and practically important fluid mechanics phenomena [1–8].Individual droplet collision on a solid substrate is common in many technological processes such as ink–jet printing, rapid spray cooling, plasma spray coating, fuel injection, catalytic wetting, etc. … 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. gras controversial food

Impinging Jet Dynamics - NASA/ADS

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

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Impinging jets and droplet dynamics

Droplet generation during liquid jet impingement onto a …

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-Reynolds-number jet. However, these pressure fluctuations dramatically change their pattern into almost periodic waves, if the plate is placed close to the nozzle ( x0 / d < … WitrynaUnderlying processes governing droplet dynamics are investigated by analyzing the overall energy budget. In addition, an advanced visualization technique using the Ray …

Impinging jets and droplet dynamics

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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 … 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.

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) … Witryna1 cze 2014 · Droplet impingement is a common phenomenon is industrial and daily life, such as spray cooling, droplet impact on the outer surface of heat transfer tube in falling film evaporators, oil drop impact on the internal wall of diesel engine combustion chamber, as well as rain-drop falling onto the ground and aircraft also involving drop …

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 … Witryna16 paź 2012 · The predicted liquid sheet topology, atomization, and droplet size distribution agree well with experimental measurements. In this fluid dynamics video, …

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 …

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. graseayWitryna14 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 … chithral somapala free mp3Witryna1 paź 2014 · Comparison between hydrodynamics of multijet atomisation with 2 and 3 impinging jets. • Drop size is closely related with azimuthal location of droplets formation. • Jet dynamics has similar influence in atomisation of 2- and 3-impinging jet sprays. • Atomizer geometry is particularly influential for 3-impinging jets sprays. • graseby 3200Witryna14 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 … gra scotland consultationWitrynaDroplet 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 … gra sea of thievesWitryna15 paź 2012 · Download a PDF of the paper titled Impinging Jet Dynamics, by Xiaodong Chen and Vigor Yang Download PDF Abstract: In this fluid dynamics … chithral somapala ralu mawatheWitryna2 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 graseby 2000