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@ARTICLE{Kovacic:625569,
      author       = {Kovacic, Kristof and kušnar, jernej and Bajt, Sasa and
                      Sarler, Bozidar},
      title        = {{N}umerical calculation and experimental validation of
                      gas-accelerated flat sheet jet},
      journal      = {Physics of fluids},
      volume       = {38},
      number       = {1},
      issn         = {1527-2435},
      address      = {[Erscheinungsort nicht ermittelbar]},
      publisher    = {American Institute of Physics},
      reportid     = {PUBDB-2025-01131},
      pages        = {012008},
      year         = {2026},
      abstract     = {This study presents the experimentally validated numerical
                      simulation of a gas-accelerated flat sheetjet, providing
                      valuable insights into its behaviour. The numerical
                      calculation, based on the finite volumemethod (FVM) and
                      volume of fluid (VOF) model, simulates a sheet jet with a
                      gas Reynolds number of351, liquid Reynolds number of 332,
                      Weber number of 51 and Capillary number of 0.15. A
                      gridconvergence study confirmed that realistic behavior
                      requires at least three computational non-adaptivecells (1.5
                      μm) across the radius of the sheet’s thinnest region (~5
                      μm), supplemented by at least twoadaptive mesh refinement
                      (AMR) levels of the interface, giving a minimum cell size of
                      375 nm. Acomparison of various numerical cases for the
                      analyzed multiphase, compressible, and unsteady flowrevealed
                      that accuracy depends on grid resolution but is not
                      sensitive to numerical schemes or settings.The developed
                      numerical model demonstrates high accuracy, with the link
                      area of the primary sheet(11,000 μm2) overestimated by
                      $6\%,$ the width (49.2 μm) by $6\%,$ and the length (215
                      μm) underpredictedby $2\%,$ all within the measurement
                      uncertainty of $7\%.$ The flow within the sheet jet was
                      found to belaminar, without any recirculation zones.The
                      analysis of the sheet jet dynamics identified four
                      distinctflow regions governed by sheath gas pressure,
                      surface tension and inertial forces, explaining theevolution
                      of gas-accelerated flat sheet jets through successive
                      orthogonal links forming a liquid chain.},
      cin          = {FS-ML},
      ddc          = {530},
      cid          = {I:(DE-H253)FS-ML-20120731},
      pnm          = {633 - Life Sciences – Building Blocks of Life: Structure
                      and Function (POF4-633) / DFG project G:(GEPRIS)390715994 -
                      EXC 2056: CUI: Tiefe Einblicke in Materie (390715994)},
      pid          = {G:(DE-HGF)POF4-633 / G:(GEPRIS)390715994},
      experiment   = {EXP:(DE-H253)CFEL-Exp-20150101},
      typ          = {PUB:(DE-HGF)16},
      doi          = {10.1063/5.0311193},
      url          = {https://bib-pubdb1.desy.de/record/625569},
}