Short time dynamics of viscous drop spreading

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August undefined, 2024

SpletShort time dynamics of viscous drop spreading A. Eddi K.G. Winkels J.H. Snoeijer Physics of Fluids Group and MESA+ Institute for Nanotechnology, Faculty of Science and … Splet11. apr. 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. Richard et al. (2002) investigated the contact time of a water droplet rebounding from a superhydrophobic solid substrate and found that the contact time was …

(PDF) Short time dynamics of viscous drop spreading (2013)

Splet08. nov. 2024 · In particular, the effects of viscosity, impact velocity, and substrate temperature on the spreading dynamics are reported. We employ high-speed photography to record time-varying droplet shapes from the side. An infrared camera maps the temperature distribution on the liquid–gas interface. Splet07. apr. 2024 · In an axial granular bed filter (GBF), a new mesoscale simulation approach is obtained by combining the macroscopic calculation models, i.e., the equations of the total pressure drop and dust-removal efficiency into the porous media model and the source term of the conservation equations. After grid-dependent tests and experimental … エヴァンゲリオン鉄

Supplemental Data S1 The Universal Dynamics of Cell Spreading

Splet01. okt. 2024 · Observations of spontaneous drop spreading reveal that spreading occurs through three distinct regimes: an initial spreading regime, a short transition regime and a viscous regime. In this study, we show that the spreading radius in the inertia-dominated early time dynamics scales as r ~ t α, where the exponent varies moderately with … Splet01. avg. 2024 · During the later spreading regime, viscous friction have a dominant influence on the balance of spreading momentum. The spherical cap of a droplet is a result of the viscous-capillary balance near the moving triple line; hydrodynamically, the spreading diameter D sp of a spherical drop over time t follow Tanner’s law D sp ~ t α [21], [22]. SpletPDF - Liquid drops start spreading directly after coming into contact with a solid sub- strate. Although this phenomenon involves a three-phase contact line, the spread- ing motion can be very fast. We experimentally study the initial spreading dy- namics, characterized by the radius of the wetted area, for viscous drops. Using high-speed imaging with synchronized … palli razmara

[1608.05220] Drop spreading with random viscosity - arXiv.org

Spreading dynamics of drop impacts - Cambridge Core

SpletSpreading Dynamics (A) Time evolutions of the contact radius for ... The cortex is elastic at short times and viscous at long times;ingeneralitsrheology,i.e.,itsresponsetoforces, ... instance [S2]), the spreading rate at short times is of the order of 1.5 mm2/s. With w = 1 mm and J = 20 mJ/m2 [S3], we ﬁnd a cortex viscosity of the order of 50 ... SpletPred 1 dnevom · Request PDF Ring-bouncing induced by the head-on impact of two nanodroplets on superhydrophobic surfaces Efficient droplet shedding from surfaces is fundamentally interesting and important due ... エヴァンゲリオン銃名前Splet14. apr. 2024 · The aeroelastic characteristics of the panel under the action of coolant are obviously different from the flutter characteristics of the traditional panel. In order to solve this problem, the dynamics model of the panel flutter was established in this paper based on von Karman’s large deformation theory and the Kirchhoff–Love … palli provincia pavia

"Splet31. jan. 2013 · Liquid drops start spreading directly after coming into contact with a solid substrate. Although this phenomenon involves a three-phase contact line, the spreading … " - Short time dynamics of viscous drop spreading

Short time dynamics of viscous drop spreading

Study of early time dynamics of drop spreading in different surrounding …

SpletLiquid drops start spreading directly after coming into contact with a solid substrate. Although this phenomenon involves a three-phase contact line, the spreading motion can be very fast. We experimentally study the initial spreading dynamics, characterized by the radius of the wetted area, for viscous drops. Using high-speed imaging with synchronized … Splet11. nov. 2024 · Rheology dictated spreading regimes of a non-isothermal sessile drop - Volume 951. ... J.H. 2013 Short time dynamics of viscous drop spreading. Phys. Fluids 25 (1), 013102.CrossRef Google Scholar. Ehrhard, P. 1993 Experiments on isothermal and non ... Lee, D., Peng, X. & Lai, J. 2007 a Spreading dynamics and dynamic contact angle of …

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SpletWe experimentally study the initial spreading dynamics, characterized by the radius of the wetted area, for viscous drops. Using high-speed imaging with synchronized bottom and … SpletWe show that short time spreading does not exhibit a pure power-law growth. Instead, we find a spreading velocity that decreases logarithmically in time, with a dynamics identical to that of coalescing viscous drops. Remarkably, the contact line dissipation and wetting effects turn out to be unimportant during the initial stages of drop spreading.

Splet01. okt. 2012 · Using the space–time-resolved Fourier transform profilometry technique, we can follow the evolution of the drop shape during the impact. We show that a self-similar … Splet01. okt. 2024 · For low viscosity drops such as D10, the hindrance to spreading from viscous drag is smaller in comparison to the high viscosity oils such as D500. As a result, …

Splet22. sep. 2015 · At time ≥20 ms, the spreading gradually transitions from an inertia-dominant to a viscous-controlled regime, during which the value of exponent α changed from 0.3 to 0.1 . SpletFIG. 3. Evolution of the spreading radius r as a function of time. The radius is simultaneously determined from the bottom view (blue diamonds) and from the side view (red triangles). Both measurements agree at times larger than 10−3 s, but there is a large discrepancy at shorter times. The side view data present a horizontal plateau whereas …

Splet21. sep. 2024 · Short time dynamics of viscous drop spreading. Phys. fluids. 2013; 25:013102. doi: 10.1063/1.4788693. [Google Scholar] 30. Mitra S, Mitra SK. Understanding the early regime of drop spreading. Langmuir. 2016; 32:8843–8848. doi: 10.1021/acs.langmuir.6b02189. [Google Scholar] 31. Jose BM, Cubaud T. Role of …

SpletFIG. 3. Evolution of the spreading radius r as a function of time. The radius is simultaneously determined from the bottom view (blue diamonds) and from the side view … pallipuram trivandrum pincodeSpleteffects resist deformation, the spreading radius changes ac-cording to rt/ t=, where is the dynamic viscosity of the drop, and there is a weak logarithmic dependence on time [8,11]. We are unaware of a study of the correspond-ing short-time viscous dynamics on a perfectly wetting surface. Here, we focus on the early stages of partial wetting, エヴァンゲリオン鍋SpletAbstract. This study investigates the effects of drop size and viscosity on spreading dynamics, including response time, maximum velocity, and spreading pattern transition, … エヴァンゲリオン鉄道コレクションSplet12. apr. 2024 · A dielectric drop suspended in an immiscible dielectric fluid of higher conductivity can spontaneously generate the so-called Quincke rotation (a rotating activity that a weakly conducting drop/solid particle displays in an electric field) subjected to sufficiently strong electric field strength. エヴァンゲリオン鏡Splet27. sep. 2012 · viscous drops. Using high-speed imaging with synchronized bottom and side views gives access to 6 decades of time resolution. We show that short time … エヴァンゲリオン銃SpletWhile Tanner’s law predicts the late time behavior of spreading for viscous drops, it does not apply at short times. In that case the geometry of the drop is completely different … palli robertaSplet17. sep. 2015 · The numerical solution is obtained by discretizing the spreading drop into disk elements. The Bond number range considered is 0.01–1. Results obtained for … palli roberta srl