Phys. Rev. Lett. 103, 124502 (2009) [4 pages]Three Periods of Drying of a Single Square Capillary TubeReceived 30 April 2009; published 16 September 2009 The drying kinetics of a porous medium is classically described in three main periods, which depend on the interplay between the external and internal mass transfers during evaporation. The first period is described as essentially depending on the external mass transfer, whereas the third period is dominated by the internal mass transfer. The second period is a crossover period. We show experimentally that a similar drying kinetics can be obtained from a much simpler system owing to the effect of corner liquid films: a capillary tube of square cross section. © 2009 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.103.124502
DOI:
10.1103/PhysRevLett.103.124502
PACS:
47.56.+r, 68.03.Fg
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