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Issue 1, 2016
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Drop impact on a flexible fiber

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Abstract

When droplets impact fibrous media, the liquid can be captured by the fibers or contact then break away. Previous studies have shown that the efficiency of drop capture by a rigid fiber depends on the impact velocity and a threshold velocity was defined below which the drop is captured. However, it is necessary to consider the coupling of elastic and capillary effects to achieve an improved understanding of the capture process for soft substrates. Here, we study experimentally the dynamics of a single drop impacting on a thin flexible fiber. Our results demonstrate that the threshold capture velocity depends on the flexibility of fibers in a non-monotonic way. We conclude that tuning the mechanical properties of fibers can optimize the efficiency of droplet capture.

Graphical abstract: Drop impact on a flexible fiber

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Article information


Submitted
05 Sep 2015
Accepted
05 Oct 2015
First published
06 Oct 2015

Soft Matter, 2016,12, 200-208
Article type
Paper
Author version available

Drop impact on a flexible fiber

E. Dressaire, A. Sauret, F. Boulogne and H. A. Stone, Soft Matter, 2016, 12, 200
DOI: 10.1039/C5SM02246K

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