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Article Dans Une Revue Physical Review Letters Année : 2004

Nucleation and growth on a superhydrophobic grooved surface

Résumé

The growth dynamics of water drops condensed on a superhydrophobic geometrically patterned surface were studied. Drop size evolution at early and intermediate times is self-similar. Drop growth laws do not differ for a flat surface because of a reduction of both drop and substrate dimensionality. A striking observation is the instantaneous drying of the top surface of grooves at a point in time due to coalescence of the drops with a completely filled channel. At late times, only a few large drops grow connected to the channels, in a mixed Wenzel-penetration regime.

Domaines

Matériaux
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Dates et versions

hal-00160928 , version 1 (09-02-2022)

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R. Narhe, Daniel Beysens. Nucleation and growth on a superhydrophobic grooved surface. Physical Review Letters, 2004, 93 (7), 076103 (4 p.). ⟨10.1103/PhysRevLett.93.076103⟩. ⟨hal-00160928⟩
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