Modeling the Evolution and Rupture of Pendular Liquid Bridges in the Presence of Large Wetting Hysteresis

Pépin, Xavier; Rossetti, Damiano; Iveson, S.M.; Simons, S.

doi:10.1006/jcis.2000.7182

Cited by 77 publications

(61 citation statements)

References 29 publications

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“…Had the decreasing contact angle reached the receding contact angle value, it would have remained at this value and then the contact line would have begun to slip on the rod. This is similar to what is shown in the work of Peppin et al (25,26), where the actual contact angle initially decreases and then remains constant as the separation distance between the supporting solids increases. Yet, in our experiments the regime of constant contact angle (slipping contact line) is never reached since the rupture of the bridge happens well above the receding contact angle value.…”

Section: Theoretical Resultssupporting

confidence: 79%

A Conductance Study of Reducing Volume Liquid Bridges

Karapantsios

Kostoglou

2002

Journal of Colloid and Interface Science

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Section: Theoretical Resultssupporting

confidence: 79%

A Conductance Study of Reducing Volume Liquid Bridges

Karapantsios

Kostoglou

2002

Journal of Colloid and Interface Science

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“…The breakdown of the liquid bridge is governed by energetic considerations. It corresponds to the minimum of the liquid-gas surface [29]. Using a numerical resolution of the Laplace-Young equation, Erle et al [22] and De Bisschop and Rigole [23] found two solutions that converge to the same solution at a critical interparticle distance corresponding to the rupture of the liquid bridge.…”

Section: Numerical Resolutionmentioning

confidence: 96%

Influence of liquid bridges on the mechanical behaviour of polydisperse granular materials

Soulié

Cherblanc

Youssoufi

et al. 2006

Int. J. Numer. Anal. Meth. Geomech.

198

131

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SUMMARYWe investigate a polydisperse granular material in which the particle interactions are governed by a capillary force law. The cohesion force for a grain-pair with unequal diameters is expressed as an explicit function of the inter-particle distance and the volume of the liquid bridge. This analytical relation is validated by experiments on a reference material. Then, it is completed by a rupture criterion and cast in the form of a force law that accounts for solid contact, capillary force and rupture characteristics of a grain-pair. Finally, in order to evaluate the influence of capillary cohesion on the macroscopic behaviour, radial and axial compression tests on cylindrical assemblies of wet particles are simulated using a 3D distinct element method.

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“…A procedure for the placement of water and the formation of the bridge is standardized as it impacts the initial contact angles (see [15,41,42]). The procedure includes: (i) setting the separation between the spheres; (ii) injecting a specified volume of water onto the lower tip of the top sphere with a laboratory micro-syringe of 0.1 µl accuracy; and (iii) allowing the injected water to drip into the gap between the spheres.…”

Section: Experimental Conditions and Techniquesmentioning

confidence: 99%

Evaporation-induced evolution of the capillary force between two grains

2014

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The evolution of capillary forces during evaporation and the corresponding changes in the geometrical characteristics of liquid (water) bridges between two glass spheres with constant separation are examined experimentally. For comparison, the liquid bridges were also tested for mechanical extension (at constant volume). The obtained results reveal substantial differences between the evolution of capillary force due to evaporation and the evolution due to extension of the liquid bridges. During both evaporation and extension, the change of interparticle capillary forces consists in a force decrease to zero either gradually or via rupture of the bridge. At small separations between the grains (short & wide bridges) during evaporation and at large volumes during extension, there is a slight initial increase of force. During evaporation, the capillary force decreases slowly at the beginning of the process and quickly at the end of the process; during extension, the capillary force decreases quickly at the beginning and slowly at the end of the process. Rupture during evaporation of the bridges occurs most abruptly for bridges with wider separations (tall and thin), sometimes occurring after only 25 % of the water volume was evaporated. The evolution (pinning/depinning) of two geometrical characteristics of the bridge, the diameter of the threephase contact line and the "apparent" contact angle at the solid/liquid/gas interface, seem to control the capillary force evolution. The findings are of relevance to the mechanics of unsaturated granular media in the final phase of drying.

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Modeling the Evolution and Rupture of Pendular Liquid Bridges in the Presence of Large Wetting Hysteresis

Cited by 77 publications

References 29 publications

A Conductance Study of Reducing Volume Liquid Bridges

A Conductance Study of Reducing Volume Liquid Bridges

Influence of liquid bridges on the mechanical behaviour of polydisperse granular materials

Evaporation-induced evolution of the capillary force between two grains

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