Coalescence of Low-Viscosity Fluids in Air

Abstract

An electrical method is used to study the early stages of coalescence of two low-viscosity drops. A drop of aqueous NaCl solution is suspended in air above a second drop of the same solution which is grown until the drops touch. At that point a rapidly widening bridge forms between them. By measuring the resistance and capacitance of the system during this coalescence event, one can obtain information about the time dependence of the characteristic bridge radius and its characteristic height. At early times, a new asymptotic regime is observed that is inconsistent with previous theoretical predictions. The measurements at several drop radii and approach velocities are consistent with a model in which the two liquids coalesce with a slightly deformed interface.

References in corpus (7)

• Drop Splashing on a Dry Smooth Surface
• Coalescence in low-viscosity liquids
• Breakup of Air Bubbles in Water: Memory and Breakdown of Cylindrical Symmetry
• A Simple Sample Size Formula for Estimating Means of Poisson Random Variables
• A Truncation Approach for Fast Computation of Distribution Functions
• A Link between Binomial Parameters and Means of Bounded Random Variables
• Estimating the Parameters of Binomial and Poisson Distributions via Multistage Sampling

Cited by in corpus (7)

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• Coalescence of Pickering emulsion droplets induced by an electric field
• Estimating the Parameters of Binomial and Poisson Distributions via Multistage Sampling
• Multistage Estimation of Bounded-Variable Means
• On Estimation of Finite Population Proportion