On the spreading of impacting drops

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August undefined, 2024

WebThe energy budget and dissipation mechanisms during droplet impact on solid surfaces are studied numerically and theoretically. We find that for high impact velocities and … WebThis 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 ...

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Web12 de ago. de 2024 · Furthermore, this spreading increases the droplet’s potential energy because of the hydrophobic interaction between the droplet and the surface—much like pulling on a spring increases its potential energy. ... H. Wu et al., “Energy harvesting from drops impacting onto charged surfaces,” Phys. Rev. Lett. 125, 078301 (2024). 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 … dick\\u0027s sporting goods huntington ny

The Effect of Surface Roughness on the Contact Line and …

Webthe impacting droplet D as a function of the We number. Different drop diameters are presented: for drop α, ∗ for drop β,and for drop γ, all three impacting sand B; are related to drops β on ... WebLiquid drops impacting onto a solid surface present very important and fascinating phenomena, which are also of great importance in many practical processes, such as … Web17 de fev. de 2016 · Maximum spreading of liquid drops impacting on solid surfaces textured with unidirectional parallel grooves is studied for drop Weber number in the range 1-100 focusing on the role of texture ... dick\u0027s sporting goods huntington ny

Charging of drops impacting onto superhydrophobic surfaces

Maximum spreading of a shear-thinning liquid drop impacting on …

Web15 de mai. de 2024 · t = 0 is defined as the moment when the droplets reach maximum spreading. (b) Dynamic contact angle measurements of a water droplet impacting (v … Web4 de dez. de 2024 · In our case, drops are impacting and then retracting radially off the surface. During the impacting process, the contact line moves in two phases: spreading and retraction. We consider the formation of an electrical double layer as the drop spreads on the surface. At the end of the spreading, the drop reaches the maximum contact … city bus hagenWeb2 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 … citybus hartberg

"Web1 de abr. de 2012 · In the present study, the maximum spreading of Newtonian and shear-thinning drops impacting on dry surfaces was investigated experimentally. Water, glycerin drops (Newtonian liquids) and xanthan drops (shear-thinning liquids) were impinged upon the flat surfaces of glass, stainless steel and parafilm-M substrates, which have … " - On the spreading of impacting drops

On the spreading of impacting drops

(PDF) On the maximal spreading of impacting compound drops …

Web12 de abr. de 2024 · Resolution independence study of drop impact at the maximal spreading with We ¼ 17.2, Re ¼ 658, and h ¼ 54 . (a) Mesh independence study and … Web3 de set. de 2024 · The effects of the Weber number, contact angle, and sphere-to-droplet diameter ratio ( D*) on the droplet impacting on a spherical surface are further studied by numerically calculating the spreading factor and the spreading arc angle corresponding to the two-dimensional wetting arc at the maximum spreading state.

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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 … Web12 de set. de 2024 · The maximal spreading ratio of the compound drop is found to depend on the volume fraction of the inner droplet 𝛼, the surface tension ratio 𝛾, the Weber number …

Web14 de jan. de 2024 · DOI: 10.1002/admi.202401791 Corpus ID: 213704613; Bioinspired Unidirectional Liquid Spreading Channel–Principle, Design, and Manufacture @article{Zhang2024BioinspiredUL, title={Bioinspired Unidirectional Liquid Spreading Channel–Principle, Design, and Manufacture}, author={Xiangyu Zhang and Dongyue … WebThis 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 ...

Web8 de abr. de 2024 · Despite extensive studies on kinematic features of impacting drops, the effect of mechanical stress on desiccated bacteria-laden droplets remains unexplored. In the present study, we unveiled the consequences of the impaction of bacteria-laden droplets on solid surfaces and their subsequent desiccation on the virulence of an … Web11 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 …

Web11 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 Weber number. ... Maximum spreading of liquid drops impacting on groove-textured surfaces: Effect of surface texture. Langmuir, 32 (2016), pp. 2399-2409.

WebUkiwe, C. & Kwok, D. Y. 2005 On the maximum spreading diameter of impacting droplets on well-prepared solid surfaces. Langmuir 21 ( 31 ), 666 – 673. CrossRef Google … citybus hartberg fahrplanWeb5 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, … dick\\u0027s sporting goods huntsvilleWebThe impact of liquid drops on a rigid surface is central in cleaning, cooling, and coating processes in both nature and industrial applications. However, it is not clear how details of pores, roughness, and texture on the solid surface influence the initial stages of the impact dynamics. Here, we experimentally study drops impacting at low velocities onto … citybus herrenbergWeb1 de mar. de 2016 · The analysis reveals that contact line pinning offers a physically meaningful justification of the observed deviation ofβm,⊥ from βm,∥ compared to other possible candidates. Maximum spreading of liquid drops impacting on solid surfaces textured with unidirectional parallel grooves is studied for drop Weber number in the … citybus harenWeb1 de jan. de 2024 · This suggests that the impacting drop looks like to be engulfed and spreading behaves as a combined liquid mass. Thus, the combined liquid spreading … citybus haßlochWeb10 de abr. de 2024 · Superhydrophobic surfaces could repel water due to the capillary force associated with surface roughness, which has a large range of applications, such as underwater drag reduction, heat transfer enhancement, oil/water separation, and so on. However, the engineering applications of superhydrophobic surfaces rely on the stability … city bus harareWeb15 de mai. de 2024 · The spreading of liquid droplets impacting a surface at high speed is well understood by now. However, when a droplet impacts a surface at relatively low impact velocities (< 1 m/s), the wetting properties of the fluid become important, and the entrapped air layer between the impacting drop and the solid surface prevents the immediate … city bus harare to gaborone