Dataset Open Access

Ultrafast X-ray tomography raw-data of bubbly two-phase pipe flow around a semi-circular obstacle

Neumann, Martin; Hampel, Uwe


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{
  "type": "dataset", 
  "language": "eng", 
  "DOI": "10.14278/rodare.136", 
  "publisher": "Rodare", 
  "note": "This work is funded by the German Federal Ministry for Economic Affairs and Energy (BMWi) with the grant number 1501481 on the basis of a decision by the German Bundestag.", 
  "author": [
    {
      "family": "Neumann, Martin"
    }, 
    {
      "family": "Hampel, Uwe"
    }
  ], 
  "id": "136", 
  "issued": {
    "date-parts": [
      [
        2019, 
        6, 
        26
      ]
    ]
  }, 
  "abstract": "<p>For the investigation of bubbly two-phase flow,&nbsp;which should serve as a future benchmark experiment for CFD code validation, an experimental study has been conducted at the <strong>T</strong>ransient Tw<strong>o-P</strong>hase <strong>Flow</strong> (TOPFLOW) facility at Helmholtz-Zentrum Dresden &ndash; Rossendorf (HZDR) using&nbsp;ultrafast electron beam X-ray tomography (UFXRAY). In this study, flow obstacles were installed into a pipe&nbsp;to create a generic three-dimensional flow field&nbsp;as an advanced test case for CFD codes. UFXRAY provide valueable data of the gas phase dynamics with high temporal and spatial resolution.</p>\n\n<p>The provided data set contains&nbsp;tomography raw-data&nbsp;for the experimental series L30&nbsp;that uses a <strong>semi-circular</strong> flow obstacle with a blockage ratio of 0.5.&nbsp;</p>\n\n<p>For visualization, the data might be opend with Fiji. Therefore choose Import-&gt;Raw... In the following window specify &quot;Image type&quot; as 16-bit Unsigned, &quot;Width&quot; as 288 pixels and &quot;Height&quot; as 500 pixels for 2x1000Hz measurement&nbsp;or 200&nbsp;pixels for 2x2500Hz measurement. Make sure that &quot;Little-endian byte order&quot; is checked. A data set contains&nbsp;image frames of both scvanning planes in alternating order. Therefore, if only a single scanning plane is required, the offset and gap parameters need to be set to 288000 bytes for 2x1000Hz measurement or&nbsp;115200 bytes for 2x2500Hz measurement.</p>", 
  "title": "Ultrafast X-ray tomography raw-data of bubbly two-phase pipe flow around a semi-circular obstacle"
}
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