Surface-Tension-Driven Flows in a Thin Layer of a Water-n-Heptanol Solution.
A model for Marangoni flows that we observed on plane free surfaces of thin layers of aqueous fatty alcohol solutions is developed by considering evaporation-condensation of alcohol. The velocities of surface-tension-driven flows caused by gradients in temperature and in concentration are evaluated for water-n-heptanol solutions, which have a minimum of the equilibrium surface tension near 40 degrees C. Theoretical results are discussed on the basis of experimental observations. Copyright 2001 Academic Press.
Azouni
M. A.
MA
LMSGC (UMR 113, CNRS/LCPC), Cité Descartes, 2, Allée Kepler, Champs sur Marne Cedex 15, 77420, France
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