November 23, 2019 Presentation Open Access

Schindler, Felix; Zürner, Till; Vogt, Tobias; Eckert, Sven; Schumacher, Jörg

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{
  "title": "Rayleigh-B\u00e9nard Convection in Liquid metal under Influence of Vertical Magnetic Fields", 
  "version": "V1.1", 
  "note": "Supported by Deutsche Forschungsgemeinschaft with grants VO 2332/1-1 and SCHU 1410/29-1", 
  "DOI": "10.14278/rodare.232", 
  "language": "eng", 
  "author": [
    {
      "family": "Schindler, Felix"
    }, 
    {
      "family": "Z\u00fcrner, Till"
    }, 
    {
      "family": "Vogt, Tobias"
    }, 
    {
      "family": "Eckert, Sven"
    }, 
    {
      "family": "Schumacher, J\u00f6rg"
    }
  ], 
  "abstract": "<p>Conference (Lecture):</p>\n\n<p>American Physics Society (APS) DFD meeting 2019 Seattle</p>\n\n<p>In the presented Rayleigh-B&eacute;nard convection experiments the turbulent 3d-<br>\nflow of the liquid gallium-indium-tin alloy is investigated by use of ultrasound<br>\nDoppler velocimetry, temperature and contactless inductive flow tomography<br>\nmeasurements. We reconstruct for the first time near-wall as well as bulk<br>\nflow, momentum and heat transport as well as long-term behaviour of the large-scale liquid<br>\nmetal flow at a low Prandtl number of 0.029 and high Rayleigh numbers up<br>\nto 6 &middot; 10e7. Also the influence of a strong magnetic field on the turbulent liquid metal is investigated. The results of the<br>\nexperiments are compared to direct numerical simulations and other experiments. These are also<br>\nconsidered for the interpretation of the measured turbulence statistics.<br>\nOur experiments aim to provide a deeper understanding of the turbulent<br>\nconvection and its interaction with magnetic fields in turbulent low Prandtl number<br>\nflows as those in molten steel, aluminium or geo- and astrophysical flows.</p>\n\n<p>&nbsp;</p>", 
  "publisher": "Rodare", 
  "id": "232", 
  "issued": {
    "date-parts": [
      [
        2019, 
        11, 
        23
      ]
    ]
  }, 
  "type": "speech"
}