The gravitational effect on the geometric profiles of droplets on horizontal fibers

Maofei Mei, Jintu Fan, Dahua Shou

    Research output: Journal article publicationJournal articleAcademic researchpeer-review

    11 Citations (Scopus)

    Abstract

    Understanding the growth or reduction of droplets on fibers during condensation or evaporation is fundamental to many applications of fibrous materials including fiber filters, water harvesting, and functional clothing. However, the effect of gravity on the geometry of droplets is still unclear. In this work, the shape change of droplets hanging from a horizontally cylindrical fiber was investigated experimentally. It was found that the relative size (as measured by the characteristic maximum height) of the NRS droplet relative to the fiber radius is inversely related to the fiber radius, meaning that (1) finer fibers can hold relatively large droplets and are therefore preferred for filtration and functional clothing, (2) the profile of the contact line between the NRS droplet and the fiber, which is crucial to understanding the gravitational effect on the shape of the droplet on the fiber, is most likely to be a spiral line in 3-D space.

    Original languageEnglish
    Pages (from-to)10324-10334
    Number of pages11
    JournalSoft Matter
    Volume9
    Issue number43
    DOIs
    Publication statusPublished - 21 Nov 2013

    ASJC Scopus subject areas

    • General Chemistry
    • Condensed Matter Physics

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