Abstract
We report an experimental study of liquid drops moving against gravity, when placed on a vertically vibrating inclined plate, which is partially wet by the drop. Frequency of vibrations ranges from 30 to 200 Hz, and above a threshold in vibration acceleration, drops experience an upward motion. We attribute this surprising motion to the deformations of the drop, as a consequence of an up/down symmetry-breaking induced by the presence of the substrate. We relate the direction of motion to contact angle measurements.
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Brunet, P., Eggers, J. & Deegan, R. Motion of a drop driven by substrate vibrations. Eur. Phys. J. Spec. Top. 166, 11–14 (2009). https://doi.org/10.1140/epjst/e2009-00870-6
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DOI: https://doi.org/10.1140/epjst/e2009-00870-6