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    Contraction of an air disk caught between two different liquids

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    Type
    Article
    Authors
    Thoraval, M.-J. cc
    Thoroddsen, Sigurdur T cc
    KAUST Department
    Clean Combustion Research Center
    High-Speed Fluids Imaging Laboratory
    Mechanical Engineering Program
    Physical Science and Engineering (PSE) Division
    Date
    2013-12-17
    Permanent link to this record
    http://hdl.handle.net/10754/552107
    
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    Abstract
    When a drop impacts a pool of liquid it entraps a thin disk of air under its center. This disk contracts rapidly into a bubble to minimize surface energy. Herein we use ultra-high-speed imaging to measure the contraction speed of this disk when the drop and pool are of different liquids. For miscible liquids the contraction rate is governed by the weaker of the two surface tensions. Some undulations are observed on the edge of the disk for a water drop impacting a pool of water, but not on a pool of lower surface tension. Similar results are observed for a pair of immiscible liquids.
    Citation
    Contraction of an air disk caught between two different liquids 2013, 88 (6) Physical Review E
    Publisher
    American Physical Society (APS)
    Journal
    Physical Review E
    DOI
    10.1103/PhysRevE.88.061001
    PubMed ID
    24483378
    Additional Links
    http://link.aps.org/doi/10.1103/PhysRevE.88.061001
    ae974a485f413a2113503eed53cd6c53
    10.1103/PhysRevE.88.061001
    Scopus Count
    Collections
    Articles; Physical Science and Engineering (PSE) Division; Mechanical Engineering Program; Clean Combustion Research Center

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