Drop impact on a flexible fiber

Emilie Dressaire, Alban Sauret, François Boulogne, Howard A. Stone

Research output: Contribution to journalArticle

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.

Original languageEnglish (US)
Pages (from-to)200-208
Number of pages9
JournalSoft Matter
Volume12
Issue number1
DOIs
StatePublished - Oct 6 2015

Fingerprint

fibers
Fibers
boundary layer separation
thresholds
impact velocity
Contacts (fluid mechanics)
flexibility
Tuning
tuning
mechanical properties
Mechanical properties
Liquids
Substrates
liquids

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics

Cite this

Dressaire, E., Sauret, A., Boulogne, F., & Stone, H. A. (2015). Drop impact on a flexible fiber. Soft Matter, 12(1), 200-208. https://doi.org/10.1039/c5sm02246k

Drop impact on a flexible fiber. / Dressaire, Emilie; Sauret, Alban; Boulogne, François; Stone, Howard A.

In: Soft Matter, Vol. 12, No. 1, 06.10.2015, p. 200-208.

Research output: Contribution to journalArticle

Dressaire, E, Sauret, A, Boulogne, F & Stone, HA 2015, 'Drop impact on a flexible fiber', Soft Matter, vol. 12, no. 1, pp. 200-208. https://doi.org/10.1039/c5sm02246k
Dressaire E, Sauret A, Boulogne F, Stone HA. Drop impact on a flexible fiber. Soft Matter. 2015 Oct 6;12(1):200-208. https://doi.org/10.1039/c5sm02246k
Dressaire, Emilie ; Sauret, Alban ; Boulogne, François ; Stone, Howard A. / Drop impact on a flexible fiber. In: Soft Matter. 2015 ; Vol. 12, No. 1. pp. 200-208.
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