Results 251 to 260 of about 93,617 (292)
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Journal of Colloid and Interface Science, 2000
The spreading of a tiny macroscopic drop of a nonvolatile, completely wetting liquid over a flat solid is considered, assuming no gravitation. A liquid, in creeping, is subjected to capillary forces and van der Waals forces. This nonstationary and nonlinear problem in the dynamics of the wetting film from a droplet is studied using numerical modeling ...
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The spreading of a tiny macroscopic drop of a nonvolatile, completely wetting liquid over a flat solid is considered, assuming no gravitation. A liquid, in creeping, is subjected to capillary forces and van der Waals forces. This nonstationary and nonlinear problem in the dynamics of the wetting film from a droplet is studied using numerical modeling ...
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Dynamic wetting of viscoelastic droplets
Physical Review E, 2015We conduct numerical experiments on spreading of viscoelastic droplets on a flat surface. Our work considers a Giesekus fluid characterized by a shear-thinning viscosity and an Oldroyd-B fluid, which is close to a Boger fluid with constant viscosity.
Yuli, Wang +2 more
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Langmuir, 1992
Abstract Two broad classes of models have been used to describe the motion of a contact line when the contact angle θ deviates from the equilibrium value θe : a) an Eyring approach, emphasizing the microscopic jump of a single molecule at the tip. b) a hydrodynamic approach, concentrating on the viscous losses inside the liquid wedge of angle θ.
F. Brochard-Wyart, P. G. de Gennes
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Abstract Two broad classes of models have been used to describe the motion of a contact line when the contact angle θ deviates from the equilibrium value θe : a) an Eyring approach, emphasizing the microscopic jump of a single molecule at the tip. b) a hydrodynamic approach, concentrating on the viscous losses inside the liquid wedge of angle θ.
F. Brochard-Wyart, P. G. de Gennes
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Journal of Colloid and Interface Science, 2000
We consider the dynamics of spreading of a small drop over a smooth solid surface. The analysis is concerned with complete wetting and accounts for capillary, viscous, and van der Waals effects, with two spreading geometries considered: cylindrical and axisymmetric. A complete description of the drop thickness, slope, and curvature profiles is provided.
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We consider the dynamics of spreading of a small drop over a smooth solid surface. The analysis is concerned with complete wetting and accounts for capillary, viscous, and van der Waals effects, with two spreading geometries considered: cylindrical and axisymmetric. A complete description of the drop thickness, slope, and curvature profiles is provided.
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Wetting Dynamics of a Lipid Monolayer
Langmuir, 2021Direct measurement and control of the dynamic wetting properties of a lipid-coated water-air interface over a wide range of surface tension variations have many important applications. However, the wetting dynamics of the interface near its partial-to-complete wetting transition has not been fully understood.
Shuo Guo +3 more
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Current Opinion in Colloid & Interface Science, 1997
Recent advancements in experimental studies of wetting phenomena have helped to bridge the gap between the progress made in theory and simulation over the past decade, and the experimental evidence or verification of the theoretical predictions. These developments include new measurements of the equilibrium thickness of precursor wetting films on solid
Findenegg, G., Herminghaus, S.
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Recent advancements in experimental studies of wetting phenomena have helped to bridge the gap between the progress made in theory and simulation over the past decade, and the experimental evidence or verification of the theoretical predictions. These developments include new measurements of the equilibrium thickness of precursor wetting films on solid
Findenegg, G., Herminghaus, S.
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Physisorption Instabilities during Dynamic Langmuir Wetting
Europhysics Letters (EPL), 1994Continuous dynamic Langmuir wetting of lipid monolayers can create regular stripe patterns on the solid substrate surface. Monolayers doped with minor amounts of fluorescence dye may be deposited in stripes of alternating high and low dye concentration. In case of pure monolayers stripes are observed with AFM.
Spratte, K., Chi, L., Riegler, H.
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1988
The problem to describe how a liquid front advances or recedes on a solid surface has already some hystory in physics. It has been the subject of many theoretical and experimental studies(1–8) of these, the treatment by De Gennes and Joanny(7) deserves attention because it has put much emphasis on the role of the precursor film in the dynamics of ...
A. M. Cazabat, M. A. Cohen Stuart
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The problem to describe how a liquid front advances or recedes on a solid surface has already some hystory in physics. It has been the subject of many theoretical and experimental studies(1–8) of these, the treatment by De Gennes and Joanny(7) deserves attention because it has put much emphasis on the role of the precursor film in the dynamics of ...
A. M. Cazabat, M. A. Cohen Stuart
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Dynamics of the critical wetting transition
Physical Review B, 1985The presence of long-range van der Waals forces in a system which undergoes a critical wetting transition gives rise to an unusually large relaxation time \ensuremath{\tau} which scales as \ensuremath{\Vert}T-${T}_{w}$${\ensuremath{\Vert}}^{\mathrm{\ensuremath{-}}5}$, where ${T}_{w}$ is the wetting temperature.
, Forgacs, , Orland, , Schick
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Contact-line fluctuations and dynamic wetting
Journal of Colloid and Interface Science, 2019The thermal fluctuations of the three-phase contact line formed between a liquid and a solid at equilibrium can be used to determine key parameters that control dynamic wetting.We use large-scale molecular dynamics simulations and Lennard-Jones potentials to model a liquid bridge between two molecularly smooth solid surfaces and study the positional ...
J-C, Fernández-Toledano +2 more
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