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@ARTICLE{Hack:874952,
      author       = {Hack, Michiel A. and Tewes, Walter and Xie, Qingguang and
                      Datt, Charu and Harth, Kirsten and Harting, Jens and
                      Snoeijer, Jacco H.},
      title        = {{S}elf-{S}imilar {L}iquid {L}ens {C}oalescence},
      journal      = {Physical review letters},
      volume       = {124},
      number       = {19},
      issn         = {0031-9007},
      address      = {College Park, Md.},
      publisher    = {APS},
      reportid     = {FZJ-2020-01719},
      pages        = {194502 –},
      year         = {2020},
      abstract     = {A basic feature of liquid drops is that they can merge upon
                      contact to form a larger drop. In spite of its importance to
                      various applications, drop coalescence on pre-wetted
                      substrates has received little attention. Here, we
                      experimentally and theoretically reveal the dynamics of drop
                      coalescence on a thick layer of a low-viscosity liquid. It
                      is shown that these so-called 'liquid lenses' merge by the
                      self-similar vertical growth of a bridge connecting the two
                      lenses. Using a slender analysis, we derive similarity
                      solutions corresponding to the viscous and inertial limits.
                      Excellent agreement is found with the experiments without
                      any adjustable parameters, capturing both the spatial and
                      temporal structure of the flow during coalescence. Finally,
                      we consider the crossover between the two regimes and show
                      that all data of different lens viscosities collapse on a
                      single curve capturing the full range of the coalescence
                      dynamics.},
      cin          = {IEK-11},
      ddc          = {530},
      cid          = {I:(DE-Juel1)IEK-11-20140314},
      pnm          = {121 - Solar cells of the next generation (POF3-121) / DFG
                      project 422916531 - Adaptive und schaltbare Grenzflächen
                      basierend auf strukturierten Kolloiden},
      pid          = {G:(DE-HGF)POF3-121 / G:(GEPRIS)422916531},
      typ          = {PUB:(DE-HGF)16},
      eprint       = {1912.06420},
      howpublished = {arXiv:1912.06420},
      archivePrefix = {arXiv},
      SLACcitation = {$\%\%CITATION$ = $arXiv:1912.06420;\%\%$},
      pubmed       = {pmid:32469577},
      UT           = {WOS:000532663000004},
      doi          = {10.1103/PhysRevLett.124.194502},
      url          = {https://juser.fz-juelich.de/record/874952},
}