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Capillary filling in drop merging: Dynamics of the four-phase contact point

Physics of fluids (1994), 2022-01, Vol.34 (1) [Peer Reviewed Journal]

Author(s) ;2022 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). ;ISSN: 1070-6631 ;EISSN: 1089-7666 ;DOI: 10.1063/5.0073057 ;CODEN: PHFLE6

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  • Title:
    Capillary filling in drop merging: Dynamics of the four-phase contact point
  • Author: Rostami, Peyman ; Auernhammer, Günter K.
  • Subjects: Miscibility ; Substrates
  • Is Part Of: Physics of fluids (1994), 2022-01, Vol.34 (1)
  • Description: The merging of immiscible drops differs significantly from the merging of miscible drops due to the formation of a liquid–liquid interface between drops. The immiscibility requires the formation of a four-phase contact point, where the drops, the gas, and the substrate meet. We show that this point has its own unique dynamics, never studied beforehand. For very different scenarios, the propagation distance of this point follows scales with time like t 1 2. A model balancing the driving and dissipative forces agrees with our experiments.
  • Publisher: Melville: American Institute of Physics
  • Language: English
  • Identifier: ISSN: 1070-6631
    EISSN: 1089-7666
    DOI: 10.1063/5.0073057
    CODEN: PHFLE6
  • Source: Alma/SFX Local Collection

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