Droplet dynamics under an impinging air jet
WebIn the present study, high-speed droplet impingement on typical curved surfaces is numerically investigated to analyse the inherent complex wave structures and cavitation. A three-component compressible multi-phase flow model is utilised considering fluid phase transitions, but the calculation of coupling with the solid structure is neglected. WebOct 11, 2024 · In this section, the impinging jet was simulated together with droplets. The geometry of the impinging jet system, the property of the droplet, and the boundary conditions were set according to the experiments in Liu et al.’s 2 work. Figure 3 shows the schematic representation of the simulation jet setup. The simulation system was of two ...
Droplet dynamics under an impinging air jet
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WebOct 4, 2024 · Dynamics of droplet-jet interaction. (A) Droplet location from the center of the impingement region (s) as a function of time (\(t-t_o\)), where \(t_o\) is the time of … WebThe NSF Public Access Repository (NSF-PAR) system and access will be unavailable from 11:00 PM ET on Friday, April 14 until 2:00 AM ET on Saturday, April 15 due to maintenance.
WebSep 1, 2024 · This work proposes a new injector design based on sprays produced from the simultaneous impact of multiple jets, using an additional jet of air to assist the atomization process. The results evidence the ability to control the average droplet size through the air mass flow rate. Depending on the air mass flow rate there is a transition between ... WebThe 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) …
WebRecent experiments by Hooshanginejad et al. ( J. Fluid Mech. , vol. 901, 2024) revealed that a millimetric partially wetting water droplet under an impinging jet can oscillate in … WebJan 7, 2024 · A secondary droplet pinched-off from the tip of the jet, and the volume of this droplet increased with an increase in the inclination of the jet. ... L. Han, and S. Liu, “ Spray wall-impingement from a single hole nozzle under common rail condition,” in Advanced Materials Research (Trans Tech ... and V. Van Steijn, “ Dynamics of droplet ...
WebThe research group led by the present author is beginning work on the simulation of spray-air flows caused by opposite injection of a swirl atomizer into heated air flow [15] (Fig. …
Webmist/air impinging jet is developed, which indicated the mist droplet is an key factor of affecting the heat transfer coefficient, and the increasing of mist droplet leads to significant enhancement of the cooling effect. ... under condition of mixture flow spraying to the macro-structured surface. In the grinding process with air/mist jet flow ... irc section 1445 eWebThe collapse of the air cavity formed during droplet impact, which is dominated by inertia and influenced by surface wettability, is the cause of the bubble entrapment. ... Jet Dynamics Associated with Drop Impact on Micropillared Substrate. Fluids 2024, 6 (4) ... Effects of magnetic field on the spreading dynamics of an impinging ferrofluid ... order carharttWebJan 1, 2024 · 2.2. Basic flow patterns. The flow characteristics and atomization of impinging jets depend on the impingement angle 2α, the ratio of the pre-impingement jet length to the jet diameter, the jet velocity profile, the turbulence level, and two nondimensional parameters: the Weber and Reynolds numbers.These numbers are defined, respectively, … order caris testing onlineWebDroplet dynamics under an impinging air jet. ZY Chen, A Hooshanginejad, S Kumar, S Lee. Journal of Fluid Mechanics 943, A32, 2024. 1: 2024: A backflipping motion of a … order caricatures onlineWebJul 10, 2016 · • Advanced Computational Fluid Dynamics (CFD) analysis in wide range of applications such as particulate flows, multiphase flow, Bubble dynamics, Cavitation, turbulence modeling, erosion ... irc section 1503WebSep 1, 2024 · Section snippets Experimental setup and measurement techniques. This experiment is conducted with water and air as working fluids at an ambient room … order carl\u0027s jr onlineWebJun 24, 2024 · Classical hydrodynamic theory and common wisdom hold that droplet impact on a superhydrophobic surface usually manifests an elastic rebound [-] because of the negligible viscous dissipation caused … irc section 1502