Journal ArticleDOI
Slip Velocity during Wetting of Solids
Eli Ruckenstein,C. S. Dunn +1 more
- Vol. 59, Iss: 1, pp 135-138
TLDR
In this paper, a slip velocity at the contact line of a liquid drop on a solid surface originates because of the force induced by the gradient of the chemical potential in the liquid along the solid-liquid interface.Abstract:
A slip velocity at the contact line of a liquid drop on a solid surface originates because of the force induced by the gradient of the chemical potential in the liquid along the solid-liquid interface. Einstein's equation is used to relate the slip velocity and the force. The gradient occurs because (a) the interaction potential at the liquid-solid interface near the contact line due to the neighboring molecules differs from that of a semi-infinite liquid and depends upon the distance from the contact line and (b) the chemical potential is pressure dependent.read more
Citations
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Journal ArticleDOI
Boundary slip in Newtonian liquids: a review of experimental studies
TL;DR: A review of experimental studies regarding the phenomenon of slip of Newtonian liquids at solid interfaces is provided in this article, with particular attention to the effects that factors such as surface roughness, wettability and the presence of gaseous layers might have on the measured interfacial slip.
Journal ArticleDOI
The physics of moving wetting lines
TL;DR: This paper seeks to offer a status report on the current approaches to wetting dynamics, to briefly review each of theCurrent approaches, to illustrate their successes and limitations as revealed by experiment and simulation, and to suggest ways in which the different aspects of wetts dynamics might be investigated in the future.
Journal ArticleDOI
Modeling and simulation of pore-scale multiphase fluid flow and reactive transport in fractured and porous media
TL;DR: In this article, a combination of continuum computation fluid dynamics, fluid-fluid interface tracking or capturing and simple models for the dependence of contact angles on fluid velocity at the contact line has been used to simulate multiphase fluid flow in fracture apertures, fracture networks and pore spaces.
Journal ArticleDOI
Slippage of liquids over lyophobic solid surfaces
TL;DR: In this paper, the slip coefficient γ of thin quartz capillaries and that of water in the same but hydrophobized capillary have been quantitatively assessed and the values of γ according to their order of magnitude amount to about 10−4 cm3/dyne·sec.
Journal ArticleDOI
Simulation of Droplet Motion on Low-Energy and Heterogeneous Surfaces
TL;DR: In this article, a method for simulation of the time-dependent three-dimensional motion of liquid droplets on solid substrates for systems exhibiting finite equilibrium contact angles is introduced, where the contact angle is a prescribed function of position on the substrate.
References
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Journal ArticleDOI
On the motion of a fluid-fluid interface along a solid surface
TL;DR: In this article, a fluid-fluid interface that joins a solid surface forms a common line and if the common line moves along the solid, a mutual displacement process is involved and is studied here.
Journal ArticleDOI
Spreading kinetics of liquid drops on solids
TL;DR: In this paper, the authors used intermolecular forces acting throughout a finite region near the drop's edge to predict experimental spreading rates for the last two stages of a liquid drop on a solid surface.
Journal ArticleDOI
The origin of flow during wetting of solids
TL;DR: In this paper, a simple theoretical analysis correctly predicts that at an advancing contact line, i.e., one where liquid replaces gas in contact with the solid, the contact angle exceeds its equilibrium value and flow along the fluid interface is toward the contact line.
Journal ArticleDOI
The wetting angle of very small and large drops
Eli Ruckenstein,P.S Lee +1 more
TL;DR: In this paper, an approximate integral equation for the profile of the surface of a drop on a horizontal solid surface is derived for large and very small drops on a vertical solid surface.