Droplets climbing a rotating helical fiber

Baptiste Darbois Texier; Stéphane Dorbolo

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arXiv · 1510.09059

Droplets climbing a rotating helical fiber

Baptiste Darbois Texier·Stéphane Dorbolo

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Abstract

A liquid droplet is placed on a rotating helical fiber. We find that the droplet may slide down, attach or climb up the fiber. We inspect experimentally the domain of existence of these three behaviors as a function of the geometrical characteristics of the fiber, its angle relatively to the horizontal, the wetting properties of the fluid and the rotating speed of the helix. A theoretical model is proposed in order to capture the boundaries of the experimental phase diagram.

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Baptiste Darbois Texier, Stéphane Dorbolo. 2015-10-30. Droplets climbing a rotating helical fiber. https://arxiv.org/abs/1510.09059

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