Surface jets and internal mixing during the coalescence of impacting and sessile droplets

  title={Surface jets and internal mixing during the coalescence of impacting and sessile droplets},
  author={Thomas C Sykes and A. Castrej{\'o}n-Pita and J. R. Castrej{\'o}n-Pita and D. Harbottle and Z. Khatir and H. Thompson and M. Wilson},
  journal={arXiv: Fluid Dynamics},
  • Thomas C Sykes, A. Castrejón-Pita, +4 authors M. Wilson
  • Published 2020
  • Materials Science, Physics
  • arXiv: Fluid Dynamics
  • The internal dynamics during the coalescence of a sessile droplet and a subsequently deposited impacting droplet, with either identical or distinct surface tension, is studied experimentally in the regime where surface tension is dominant. Two color high-speed cameras are used to capture the rapid internal flows and associated mixing from both side and bottom views simultaneously by adding an inert dye to the impacting droplet. Given sufficient lateral separation between droplets of identical… CONTINUE READING
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