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Comparison of subgrid-scale models for large-eddy simulation of hydrodynamic and magnetohydrodynamic channel flows.

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Title: Comparison of subgrid-scale models for large-eddy simulation of hydrodynamic and magnetohydrodynamic channel flows.
Authors: Prinz, Sebastian1 (AUTHOR) sebastian.prinz@tu-ilmenau.de, Schumacher, Jörg1 (AUTHOR) joerg.schumacher@tu-ilmenau.de, Boeck, Thomas1 (AUTHOR) thomas.boeck@tu-ilmenau.de
Source: International Journal of Numerical Methods for Heat & Fluid Flow. 2019, Vol. 29 Issue 7, p2224-2236. 13p.
Subjects: Channel flow, Magnetohydrodynamics, Energy transfer, Magnetic fields, Simulation methods & models
Abstract: Purpose: This paper aims to address the performance of different subgrid-scale models (SGS) for hydro- (HD) and magnetohydrodynamic (MHD) channel flows within a collocated finite-volume scheme. Design/methodology/approach: First, the SGS energy transfer is analyzed by a priori tests using fully resolved DNS data. Here, the focus lies on the influence of the magnetic field on the SGS energy transport. Second, the authors performed a series of 18 a posteriori model tests, using different grid resolutions and SGS models for HD and MHD channel flows. Findings: From the a priori analysis, the authors observe a quantitative reduction of the SGS energy transport because of the action of the magnetic field depending on its orientation. The a posteriori model tests show a clear improvement because of the use of mixed-models within the numerical scheme. Originality/value: This study demonstrates the necessity of improved SGS modeling strategies for magnetohydrodynamic channel flows within a collocated finite-volume scheme. [ABSTRACT FROM AUTHOR]
Copyright of International Journal of Numerical Methods for Heat & Fluid Flow is the property of Emerald Publishing Limited and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 138344621
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: Comparison of subgrid-scale models for large-eddy simulation of hydrodynamic and magnetohydrodynamic channel flows.
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  Data: <searchLink fieldCode="AR" term="%22Prinz%2C+Sebastian%22">Prinz, Sebastian</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> sebastian.prinz@tu-ilmenau.de</i><br /><searchLink fieldCode="AR" term="%22Schumacher%2C+Jörg%22">Schumacher, Jörg</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> joerg.schumacher@tu-ilmenau.de</i><br /><searchLink fieldCode="AR" term="%22Boeck%2C+Thomas%22">Boeck, Thomas</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> thomas.boeck@tu-ilmenau.de</i>
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  Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Numerical+Methods+for+Heat+%26+Fluid+Flow%22">International Journal of Numerical Methods for Heat & Fluid Flow</searchLink>. 2019, Vol. 29 Issue 7, p2224-2236. 13p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Channel+flow%22">Channel flow</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetohydrodynamics%22">Magnetohydrodynamics</searchLink><br /><searchLink fieldCode="DE" term="%22Energy+transfer%22">Energy transfer</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetic+fields%22">Magnetic fields</searchLink><br /><searchLink fieldCode="DE" term="%22Simulation+methods+%26+models%22">Simulation methods & models</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Purpose: This paper aims to address the performance of different subgrid-scale models (SGS) for hydro- (HD) and magnetohydrodynamic (MHD) channel flows within a collocated finite-volume scheme. Design/methodology/approach: First, the SGS energy transfer is analyzed by a priori tests using fully resolved DNS data. Here, the focus lies on the influence of the magnetic field on the SGS energy transport. Second, the authors performed a series of 18 a posteriori model tests, using different grid resolutions and SGS models for HD and MHD channel flows. Findings: From the a priori analysis, the authors observe a quantitative reduction of the SGS energy transport because of the action of the magnetic field depending on its orientation. The a posteriori model tests show a clear improvement because of the use of mixed-models within the numerical scheme. Originality/value: This study demonstrates the necessity of improved SGS modeling strategies for magnetohydrodynamic channel flows within a collocated finite-volume scheme. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of International Journal of Numerical Methods for Heat & Fluid Flow is the property of Emerald Publishing Limited and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1108/HFF-09-2018-0500
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 13
        StartPage: 2224
    Subjects:
      – SubjectFull: Channel flow
        Type: general
      – SubjectFull: Magnetohydrodynamics
        Type: general
      – SubjectFull: Energy transfer
        Type: general
      – SubjectFull: Magnetic fields
        Type: general
      – SubjectFull: Simulation methods & models
        Type: general
    Titles:
      – TitleFull: Comparison of subgrid-scale models for large-eddy simulation of hydrodynamic and magnetohydrodynamic channel flows.
        Type: main
  BibRelationships:
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      – PersonEntity:
          Name:
            NameFull: Prinz, Sebastian
      – PersonEntity:
          Name:
            NameFull: Schumacher, Jörg
      – PersonEntity:
          Name:
            NameFull: Boeck, Thomas
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 01
              M: 07
              Text: 2019
              Type: published
              Y: 2019
          Identifiers:
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              Value: 09615539
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            – Type: volume
              Value: 29
            – Type: issue
              Value: 7
          Titles:
            – TitleFull: International Journal of Numerical Methods for Heat & Fluid Flow
              Type: main
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