On the spreading of impacting drops
Web1 de abr. de 2024 · Hydrocarbon fuel drops impacting on metallic solid surfaces kept at room temperature exhibit no receding after the completion of early inertia-driven primary spreading. The experimental data of impacting drops of different fuels on a smooth stainless steel surface reveal a sluggish spreading, referred to as post-spreading, after … WebDroplet impact has been imaged on different rigid, smooth, and rough substrates for three liquids with different viscosity and surface tension, with special attention to the lower …
On the spreading of impacting drops
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Web2 de mai. de 2024 · We numerically study the impact of a liquid drop onto no-slip rigid substrates with different wettabilities using a diffuse interface method, aiming to obtain a … Web15 de jun. de 2024 · The spreading ratio β = D s / D is defined in Fig. 3 (a) with a typical time evolution presented in Fig. 3 (b). After the drop contacts the solid surface, β first …
Web30 de abr. de 2024 · Therefore, the results in figure 20(a) contrast with those in Range & Feuillebois (Reference Range and Feuillebois 1998) for the case of drops impacting … Web5 de mar. de 2024 · The self-consistent theory presented here, which does not make use of energetic arguments to predict the maximum spreading diameter of impacting drops, …
Web11 de fev. de 2016 · On the spreading of impacting drops. The energy budget and dissipation mechanisms during droplet impact on solid surfaces are studied numerically … Web10 de jan. de 2024 · The maximum spreading of drops impacting on smooth and rough surfaces is measured from low to high impact velocity for liquids with different surface tensions and viscosities.
Web23 de ago. de 2024 · Interaction between an impinging liquid drop with low momentum and a heated wall is investigated experimentally, using a high-speed digital camera with capacity of 10 $$^{6}$$ 6 frames per second. Wall temperature ranges in 47–108 $${}^{\\circ }$$ ∘ C, and Weber number varies from 4 to 67. Water is selected as the fluid due to its relatively …
Web5 de jan. de 2024 · In contrast to water droplets, the colloid droplets exhibit vigorous spraying behavior due to the nanoparticulate residue deposition during the spreading and retraction stages. Further, the residue on the heated substrate changes the departure diameter of the vapor bubbles during boiling, prevents bubble coalescence and vapor … north carolina freight servicesWebThis new view on the impact problem allows for simple analytical estimates of the maximum spreading diameter of impacting drops as a function of the impact parameters and the properties of the solid surface. It bridges the gap between previous momentum balance approaches and energy balance approaches, which hitherto did not give consistent ... north carolina free tax filingWeb11 de abr. de 2024 · Moreover, the maximum spreading diameter of the water drop was proportional to the first power of the water drop diameter and the quarter power of the … how to research on any topicnorth carolina founder 1712Web14 de abr. de 2024 · Recently, using an impacting droplet has presented great potential in promoting the shedding of a sessile droplet on superhydrophobic surfaces. 13,14 13. F.-C. Wang, J.-T. Feng, and Y.-P. Zhao, “ The head-on colliding process of binary liquid droplets at low velocity: High-speed photography experiments and modeling,” J. Colloid Interface … north carolina free legal aidWeb20 de jun. de 2010 · The apparent dynamic contact angle of drops impacting on hydrophobic substrates is studied experimentally by high-speed imaging. Drops of pure water are compared with drops of a dilute polymer solution (200. ppm poly-ethylene oxide), to investigate the relationship between changes in the dynamic contact angle and the … how to research nonprofit organizationsWeb1 de out. de 2012 · We present an experimental study of drop impact on a solid surface in the spreading regime with no splashing. Using the space–time-resolved Fourier … north carolina friends historical society