Coalescence of sessile drops

  title={Coalescence of sessile drops},
  author={Vadim S. Nikolayev and Daniel A. Beysens and Yves Pomeau and Claire Andrieu},
  journal={Journal of Fluid Mechanics},
  pages={427 - 438}
We present an experimental and theoretical description of the kinetics of coalescence of two water drops on a plane solid surface. The case of partial wetting is considered. The drops are in an atmosphere of nitrogen saturated with water where they grow by condensation and eventually touch each other and coalesce. A new convex composite drop is rapidly formed that then exponentially and slowly relaxes to an equilibrium hemispherical cap. The characteristic relaxation time is proportional to the… 

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