Equilibrium configurations for a floating drop

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Issue Date
2004-12-01
Embargo End Date
Authors
Elcrat, Alan R.
Neel, Robert
Siegel, David
Advisor
Citation

Elcrat, A., R. Neel, et al. (2004). "Equilibrium configurations for a floating drop." Journal of Mathematical Fluid Mechanics 6(4): 405-429.

Abstract

If a drop of fluid of density ρ1 rests on the surface of a fluid of density ρ2 below a fluid of density ρ0, ρ0 < ρ1 < ρ2, the surface of the drop is made up of a sessile drop and an inverted sessile drop which match an external capillary surface. Solutions of this problem are constructed by matching solutions of the axisymmetric capillary surface equation. For general values of the surface tensions at the common boundaries of the three fluids the surfaces need not be graphs and the profiles of these axisymmetric surfaces are parametrized by their tangent angles. The solutions are obtained by finding the value of the tangent angle for which the three surfaces match. In addition the asymptotic form of the solution is found for small drops.

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