Drops sitting on an array of parallel fibres spontaneously move along the fibres when subject to an airflow perpendicular to the array. The drops show long-range aerodynamic interactions with their downstream and upstream neighbours, and these can catalyse drop coalescence and removal of drops from the fibres — relevant for applications such as fog harvesting and filtration.
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References
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This is a summary of: Wilson, J. L. et al. Aerodynamic interactions of drops on parallel fibres. Nat. Phys. https://doi.org/10.1038/s41567-023-02159-4 (2023).
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How drops of liquid move along parallel fibres in a perpendicular airflow. Nat. Phys. 19, 1565–1566 (2023). https://doi.org/10.1038/s41567-023-02171-8
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DOI: https://doi.org/10.1038/s41567-023-02171-8
