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@ARTICLE{Meunders:844682,
      author       = {Meunders, Andreas and Arnold, Lukas and Belt, Alexander and
                      Hundhausen, Alexander},
      title        = {{V}elocity measurements of a bench scale buoyant plume
                      applying particle image velocimetry},
      journal      = {International journal of heat and mass transfer},
      volume       = {123},
      issn         = {0017-9310},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier},
      reportid     = {FZJ-2018-02067},
      pages        = {473 - 488},
      year         = {2018},
      abstract     = {This paper presents the experimental investigation of the
                      buoyant plume above an electrically heated block of copper.
                      The velocity field in a vertical plane along the plume axis
                      is investigated via particle image velocimetry. Experiments
                      with electrical power from 30  W to 96  W are carried
                      out, which lead to heat source temperatures of 149–307
                       °C. The resulting flow is laminar for the lowest power
                      setting and undergoes a transition to turbulent flow for
                      higher heat inputs. With increasing heat input the point of
                      transition from laminar to turbulent flow occurs at lower
                      heights.Time-averaged velocity fields are presented together
                      with the according measurement uncertainty that results from
                      the evaluation with particle image velocimetry. Based on
                      these velocity fields a number of characteristic values for
                      the plume is derived in different heights, e.g. maximum
                      velocities, plume widths and flow integrals. In order to
                      further evaluate the transition from laminar to turbulent
                      flow the vertical velocity and the standard deviation of the
                      horizontal velocity along the plume axis and as a function
                      of the Grashof number are investigated. The transition
                      occurs at Grashof numbers in the range $4×10^8$ < Gr <
                      $2×10^9,$ which is in accordance with previous findings. In
                      addition to the velocity measurements, the temperature
                      stratification inside the enclosure is measured to quantify
                      the ambient conditions.},
      cin          = {IAS-7 / JSC / IEK-6},
      ddc          = {620},
      cid          = {I:(DE-Juel1)IAS-7-20180321 / I:(DE-Juel1)JSC-20090406 /
                      I:(DE-Juel1)IEK-6-20101013},
      pnm          = {511 - Computational Science and Mathematical Methods
                      (POF3-511)},
      pid          = {G:(DE-HGF)POF3-511},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000434887000040},
      doi          = {10.1016/j.ijheatmasstransfer.2018.02.011},
      url          = {https://juser.fz-juelich.de/record/844682},
}