Impalement of fakir drops
Witryna4 lut 2013 · To use superhydrophobicity, impalement of the drop into the surface structure needs to be prevented. To understand the underlying processes, we image … Witryna4 lut 2013 · To use superhydrophobicity, impalement of the drop into the surface structure needs to be prevented. To understand the underlying processes, we image the impalement dynamics in three dimensions by confocal microscopy. ... which leads to the low adhesion. In this so-called Cassie or fakir state, the drop rests on top of the …
Impalement of fakir drops
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Witrynasure. The drop can follow two successive deformations se-quences prior to impalement. First, the fakir drop remains on top of the asperities of the rough surface and increases its curvature as the drop evaporates. Then, impalement is locally nucleated by a defect and lead to the growth of a partly impaled region below the drop where the liq- Witryna23 sty 2015 · It is known that the drag for flows driven by a pressure gradient in heated channels can be reduced below the level found in isothermal channels. This reduction occurs for spatially modulated heating and is associated with the formation of separation bubbles which isolate the main stream from direct contact with the solid wall.
Witryna15 mar 2006 · The analysis of drop impact and quasi-static “loading” experiments on model microfabricated surfaces allows to clearly identify the forces hindering the impalement transitions. A simple semi-quantitative model is proposed to account for the observed relation between the surface topography and the robustness of fakir non … Witryna4 gru 2024 · For all the sample types, when the drop size was increased from 0.5 to 3 µL, smaller apparent CA values were measured, so that a partial impalement of the fakir drops on the surface peaks may be hypothesized, owing to …
Witryna20 gru 2007 · However, this "fakir state" is often metastable: if the drop impales inside the texture, its surface energy is lowered. Here we discuss the transition between these two states, considering the drop size as a parameter for inducing this transition: … Witryna5 gru 2007 · Life and death of a fakir droplet: Impalement transitions on superhydrophobic surfaces SpringerLink Home The European Physical Journal E Article Regular Article Published: 05 December 2007 Life and death of a fakir droplet: Impalement transitions on superhydrophobic surfaces S. Moulinet & D. Bartolo
WitrynaImpalement of fakir drops Reyssat, M. ; Yeomans, J. M. ; Quéré, D. Water drops deposited on hydrophobic materials decorated with dilute micro-posts generally form …
http://www.sy.uestc.edu.cn/cn/article/doi/10.12179/1672-4550.20240610 population mean sigma knownWitryna1 sty 2008 · However, this "fakir state" is often metastable: if the drop impales inside the texture, its surface energy is lowered. Here we discuss the transition between these … shark teeth diseaseWitrynaBouncing or sticky droplets: Impalement transitions on superhydrophobic micropatterned surfaces. Verneuil, É. When a liquid drop impinges a hydrophobic rough surface it … population md eastern shoreWitrynaImpalement, as a method of torture and execution, is the penetration of a human by an object such as a stake, pole, spear, or hook, often by the complete or partial … shark teeth florida beachesWitryna1 gru 2007 · We present now two possible impalement scenarios for a droplet inside a textured surface [34], [35] ( In the case of a low aspect ratio of the textures, we have what is called a "Touch down"... population mean on excelWitrynaImpalement of fakir drops. EPL 81 (2), 26006 Fast directed motion of "fakir"droplets Hydrodynamic friction of fakir-like superhydrophobic surfaces Life and death of a fakir droplet: Impalement transitions on superhydrophobic surfaces Estimating surface area by isotropic fakir method from thick slices cut in arbitrary direction population mean calculator with confidenceWitrynaKWON H M, PAXSON A T, VARANASI K K, et al. Rapid deceleration-driven wetting transition during pendant drop deposition on superhydrophobic surfaces[J]. Physical Review Letters, 2011, 106(3): 036102. doi: 10.1103/PhysRevLett.106.036102 [8] REYSSAT M, YEOMANS J M, Quéré D. Impalement of fakir drops[J]. shark teeth found on beach