BERTIN, Vincent; NIVEN, John; STONE, Howard A.; SALEZ, Thomas; RAPHAEL, Elie; DALNOKI-VERESS, Kari

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BERTIN, Vincent
Laboratoire Ondes et Matière d'Aquitaine [LOMA]

NIVEN, John
McMaster University [Hamilton, Ontario]

STONE, Howard A.
Department of Mechanical and Aerospace Engineering [Princeton] [MAE]

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Physical Review Letters. 2020-05-08, vol. 124, p. 184502

American Physical Society

Resumen en inglés

We present experiments to study the relaxation of a nano-scale cylindrical perturbation at one of the two interfaces of a thin viscous free-standing polymeric film. Driven by capillarity, the film flows and evolves towards equilibrium by first symmetrizing the perturbation between the two interfaces, and eventually broadening the perturbation. A full-Stokes hydrodynamic model is presented which accounts for both the vertical and lateral flows, and which highlights the symmetry in the system. The symmetrization time is found to depend on the membrane thickness, surface tension, and viscosity.< Leer menos

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Laboratoire Ondes et Matière d'Aquitaine (LOMA) - UMR 5798