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Title: Self-excited drop oscillations in electrowetting

Description: A sessile drop detaches from a wire under the influence of time dependent electrowetting. Under suitable conditions the drop gets discharged during the pinch-off and the contact angle increases back to Young's angle. As a consequence, the contact line retracts and the drop reattaches to the wire, whereupon the cycle begins again. The discharging mechanism is based on the interplay between hydrodynamics and electrical effects.


References: J.-C. Baret and F. Mugele "Electrical Discharge in Capillary Breakup: Controlling the Charge of a Droplet"

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Contributed By: Frieder Mugele

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