Marangoni effect

Experimental demonstration of the Marangoni effect. Pepper is sprinkled onto the surface of the water in the left dish; when a droplet of soap is added to that water, the specks of pepper move rapidly outwards.

The Marangoni effect (also called the Gibbs–Marangoni effect) is the mass transfer along an interface between two phases due to a gradient of the surface tension. In the case of temperature dependence, this phenomenon may be called thermo-capillary convection[1] (or Bénard–Marangoni convection).[2]

  1. ^ "Marangoni Convection". COMSOL. Archived from the original on 2012-03-08. Retrieved 2014-08-06.
  2. ^ Getling, A.V. (1998). Rayleigh-Bénard convection : structures and dynamics (Reprint. ed.). Singapore: World Scientific. ISBN 981-02-2657-8.