@article{THESIS,
      recid = {645},
      author = {Latka, Andrzej},
      title = {Thin-Sheet Creation and Threshold Pressures in Drop  Splashing},
      publisher = {University of Chicago},
      school = {Ph.D.},
      address = {2016-12},
      number = {THESIS},
      pages = {33},
      abstract = {A liquid drop impacting a smooth solid substrate splashes  by emitting a thin liquid sheet from near the contact line  of the spreading liquid. This sheet is lifted from the  substrate and ultimately breaks apart. Surprisingly, the  splash is caused by the ambient gas, whose properties  dictate when and if the sheet is created. Here I focus on  two aspects of this process. Using high-speed imaging I  find that the time of thin-sheet creation displays a  different quantitative dependence on air pressure if the  sheet is created during the early stages of spreading,  rather than when the liquid has already spread to a large  radius. This result sheds light on previously observed  impact velocity regimes. Additionally, by measuring impacts  of drops on surfaces comprised of both rough and smooth  regions, I identify a new threshold velocity that limits  the times at which the thin sheet can be created. This  velocity determines the threshold pressure below which  splashing is suppressed.},
      url = {http://knowledge.uchicago.edu/record/645},
}