Modeling the effect of surface forces on the equilibrium liquid profile of a capillary meniscus.

Kuchin, Igor V; Matar, Omar K; Craster, Richard V; Starov, Victor M · Soft Matter · 2014

basic_science · Level V

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Abstract

The equilibrium profile of a capillary meniscus formed under combined action of disjoining/conjoining and capillarity pressures is investigated. Attention is focused on the shape of a transition zone between a spherical meniscus and a thin liquid film in front of the meniscus. The Poisson-Boltzmann equation is used for calculations of electrostatic contribution to the disjoining/conjoining pressure and the liquid shape inside the transition zone. Both complete and partial wetting conditions are investigated.