On the spreading of impacting drops

Author: almh

August undefined, 2024

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 ... 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 …

Droplet bouncing on moving superhydrophobic groove surfaces

Web21 de out. de 2024 · Vaikuntanathan, V. & Sivakumar, D. Maximum spreading of liquid drops impacting on groove-textured surfaces: effect of surface texture. Langmuir 32 , 2399–2409 (2016). Article CAS Google Scholar WebStudies of water drop impacts on microstructured surfaces are important for understanding dynamic wetting on rough surfaces, and for developing related design principles. Here, high-speed imaging has been used to study asymmetries within the spreading phase following vertical water drop impacts at Weber numbers between 34 and 167. earth-113599

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Web3 de out. de 2005 · The spreading of water drops impinging on structured rough surfaces is studied experimentally. The rough surfaces are specially prepared with a regular pattern of surface asperities. The arrangement of the square-shaped surface asperities creates channel-like grooves on the surface. A video microscope along with a controlled light … 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 … Webwww.cambridge.org earth 113 umich

The Effect of Surface Roughness on the Contact Line and …

Spreading and splashing of drops impacting rough …

Web1 de out. de 2024 · 17 examine the ti me-dependen t spreading dy namics of a drop on to a curved hydr ophobic surf ace. We also obse rved that a drop on a cu rved sur- 18 face … 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 … ctc foods internationalWeb12 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). ctc for cattle

"Web20 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 … " - On the spreading of impacting drops

On the spreading of impacting drops

On the maximal spreading of drops impacting onto a no-slip …

Web1 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 … 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 …

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Web10 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 …

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 … 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 …

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 … Web1 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 …

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 (b) time step independence study.

Web14 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. … earth 114Web12 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 … ctc footballWeb10 de jun. de 2024 · For larger values of the inclination angle, the final shape of the drop can be approximated by an ellipse whose major and minor semiaxes can also be … ctc food sanitationWeb15 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 … ctc for anaplasmosisWebOn a wetting surface, "receding breakup" can occur as the liquid retracts from its maximum spreading radius, due to the fact that the contact angle decreases during retraction, causing some drops to be left behind by the receding drop. On superhydrophobic surfaces, the retracting drop can break up into a number of fingers which are each capable of further … ctc forbesWeb4 de abr. de 2024 · In this particular research, droplet impact onto a smooth sapphire surface is studied for seven glycerol concentrations between 0% and 100%, and 294 … earth-11491Web8 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 … ctc for 2020