February 28, 2023 Dataset Open Access

Sommer, Anna-Elisabeth; Draw, Mazen; Wang, Lantian; Schmidtpeter, Jan; Gatter, Josefine; Nam, Haein; Eckert, Kerstin; Rzehak, Roland

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{
  "@id": "https://doi.org/10.14278/rodare.2176", 
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    "https://www.hzdr.de/publications/Publ-36732"
  ], 
  "identifier": "https://doi.org/10.14278/rodare.2176", 
  "creator": [
    {
      "affiliation": "HZDR", 
      "@id": "https://orcid.org/0000-0002-2885-1830", 
      "@type": "Person", 
      "name": "Sommer, Anna-Elisabeth"
    }, 
    {
      "affiliation": "HZDR", 
      "@id": "https://orcid.org/0000-0002-0268-9118", 
      "@type": "Person", 
      "name": "Draw, Mazen"
    }, 
    {
      "affiliation": "HZDR", 
      "@type": "Person", 
      "name": "Wang, Lantian"
    }, 
    {
      "affiliation": "HZDR", 
      "@id": "https://orcid.org/0009-0004-1085-5536", 
      "@type": "Person", 
      "name": "Schmidtpeter, Jan"
    }, 
    {
      "affiliation": "TUD", 
      "@type": "Person", 
      "name": "Gatter, Josefine"
    }, 
    {
      "affiliation": "HZDR", 
      "@type": "Person", 
      "name": "Nam, Haein"
    }, 
    {
      "affiliation": "HZDR", 
      "@id": "https://orcid.org/0000-0002-9671-8628", 
      "@type": "Person", 
      "name": "Eckert, Kerstin"
    }, 
    {
      "affiliation": "HZDR", 
      "@type": "Person", 
      "name": "Rzehak, Roland"
    }
  ], 
  "license": "https://creativecommons.org/licenses/by/4.0/legalcode", 
  "version": "1.0", 
  "name": "Hydrodynamics in a bubble column \u2013 Part 1: Two-phase flow", 
  "keywords": [
    "Particle Image Velocimetry (PIV)", 
    "Shadowgraphy", 
    "Two-phase bubble column"
  ], 
  "distribution": [
    {
      "fileFormat": "zip", 
      "@type": "DataDownload", 
      "contentUrl": "https://rodare.hzdr.de/api/files/960b5614-d71a-4934-abf7-6676a2395a94/Data_Two_Phase.zip"
    }
  ], 
  "description": "<p>Multiphase computational fluid dynamics (CFD) simulation is a useful tool to study the hydrodynamics in a bubble column, if appropriate closure models are known. Systematic assessment of different models is an ongoing venture that benefits from improved validation data. The present study accumulates a database on two-phase flow experiments in a bubble column. This is achieved by using a combination of Particle Image Velocimetry and Shadowgraphy to measure the liquid velocity field and gas dispersion properties simultaneously. This methodology is applied for different needle diameters and gas flow rates.</p>\n\n<p>A detailed description of the experimental setup can be found in <a href=\"https://onlinelibrary.wiley.com/doi/full/10.1002/ceat.202300130\">Sommer et al. (2023)</a>.</p>\n\n<p>The experimental data (Table 1) described in this repository is structured into different folders and files as follows:<br>\nLevel 1: Folders classified by measurement configuration: <strong>TX_Jg_Y_Di_ZZZ</strong> as outlined in Table 1</p>\n\n<ul>\n\t<li><strong>TX</strong> = Identifier</li>\n\t<li><strong>Jg_Y</strong> = Superficial gas velocity in mm/s</li>\n\t<li><strong>Di_ZZZ</strong> = Inner diameter of the needle in &micro;m</li>\n</ul>\n\n<p>Level 2: Folders classified by measurement height:&nbsp;<strong>Z_XXX</strong></p>\n\n<ul>\n\t<li><strong>Z_XXX</strong> = Measurement height in mm</li>\n</ul>\n\n<p>Level 3: csv files classified by their analysis parameter:</p>\n\n<ul>\n\t<li>Gas_Eg_ub_over_x.csv: Each csv file consists of five columns, namely the x-coordinate (in m), the gas holdup, the uncertainty of the gas holdup, the averaged bubble rising velocity (in m/s) and the corresponding uncertainty (in m/s).</li>\n\t<li>Liquid_v_z_over_x.csv: Each csv file consists of three columns, namely the x-coordinate (in m), the averaged liquid velocity (in m/s) and the corresponding uncertainty (in m/s).</li>\n</ul>\n\n<p>Table 1: Overview of the measurement cases in this repository.</p>\n\n<pre><code class=\"language-markdown\">| ID | Diameter of needle orifice in \u00b5m | Superficial gas velocity in mm/s |\n|----|----------------------------------|----------------------------------|\n| T1 | 200                              | 2                                |\n| T2 | 200                              | 4                                |\n| T3 | 200                              | 6                                |\n| T4 | 600                              | 2                                |\n| T5 | 600                              | 4                                |\n| T6 | 600                              | 6                                |</code></pre>", 
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  "inLanguage": {
    "alternateName": "eng", 
    "@type": "Language", 
    "name": "English"
  }, 
  "datePublished": "2023-02-28", 
  "@type": "Dataset", 
  "url": "https://rodare.hzdr.de/record/2176"
}