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Microdroplet impact at very high velocity

Soft Matter, ISSN: 1744-683X, Vol: 8, Issue: 41, Page: 10732-10737
2012
  • 77
    Citations
  • 0
    Usage
  • 145
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    77
    • Citation Indexes
      77
  • Captures
    145

Article Description

Water microdroplet impact at velocities up to 100 m s for droplet diameters ranging from 12 to 100 μm is studied. This parameter range covers the transition from capillary-limited to viscosity-limited spreading of the impacting droplet. Splashing is absent for all measurements; the droplets always gently spread over the surface. The maximum spreading radius is compared to several existing models. The model by Pasandideh-Fard et al. agrees well with the measured data, indicating the importance of a thin boundary layer just above the surface, in which most of the viscous dissipation in the spreading droplet takes place. As explained by the initial air layer under the impacting droplet, a contact angle of 180 degrees is used as the model input. © 2012 The Royal Society of Chemistry.

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