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Pressure Drop in Seven-Pin Wire-Wrapped Rod Bundle for the Sodium Cartridge Loop in Versatile Test Reactor.

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Title: Pressure Drop in Seven-Pin Wire-Wrapped Rod Bundle for the Sodium Cartridge Loop in Versatile Test Reactor.
Authors: Quan, Zhengting1 (AUTHOR), Dix, Adam1 (AUTHOR), Kong, Ran1 (AUTHOR), Kim, Seungjin1 (AUTHOR) seungjin@purdue.edu, Ishii, Mamoru1 (AUTHOR), Farmer, Mitchell T.2 (AUTHOR)
Source: Nuclear Science & Engineering. May2023, Vol. 197 Issue 5, p771-787. 17p.
Subjects: Pressure drop (Fluid dynamics), Computational fluid dynamics, Fast reactors, Reynolds number, Sodium, Shearing force
Abstract: This work studies the hydrodynamics of the seven-pin wire-wrapped rod bundle in the sodium cartridge loop for the Versatile Test Reactor (VTR) through scaled water experiments and computational fluid dynamics (CFD) simulations. The scaling analysis is first performed to demonstrate the hydrodynamic similarity between water and sodium flows at the same Reynolds number R e. A separate-effects test facility is designed and constructed based on the scaling analysis. Detailed experimental data on the pressure drop covering a wide range of R e values (1165 to 27 689) are obtained, which are used to evaluate existing correlations for friction factor and to benchmark CFD simulations. The experimentally determined friction factors f E x p agree well with the Upgraded Cheng and Todreas Detailed Correlation and Pacio-Chen-Todreas Detailed Model within ± 7 % but are significantly underpredicted by Rehme's correlation by 25%. Various CFD near-wall treatment methods are tested using ANSYS Fluent and evaluated by experimental data. It is found that when the recommended wall y + values are met, most of the near-wall treatment methods can give accurate friction factor predictions. The resolved near-wall method ( y + ∼ 1) with the Shear Stress Transport k − ω turbulence model and the scalable wall functions ( y + > 12) with the realizable k − ε turbulence model can predict f E x p within ± 5 % . The standard wall functions ( y + > 30) and nonequilibrium wall functions ( y + > 30) with the realizable k − ε model can predict f E x p within ± 10%. [ABSTRACT FROM AUTHOR]
Copyright of Nuclear Science & Engineering is the property of Taylor & Francis Ltd 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: 162762849
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  Data: Pressure Drop in Seven-Pin Wire-Wrapped Rod Bundle for the Sodium Cartridge Loop in Versatile Test Reactor.
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  Data: <searchLink fieldCode="AR" term="%22Quan%2C+Zhengting%22">Quan, Zhengting</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Dix%2C+Adam%22">Dix, Adam</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kong%2C+Ran%22">Kong, Ran</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kim%2C+Seungjin%22">Kim, Seungjin</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> seungjin@purdue.edu</i><br /><searchLink fieldCode="AR" term="%22Ishii%2C+Mamoru%22">Ishii, Mamoru</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Farmer%2C+Mitchell+T%2E%22">Farmer, Mitchell T.</searchLink><relatesTo>2</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Nuclear+Science+%26+Engineering%22">Nuclear Science & Engineering</searchLink>. May2023, Vol. 197 Issue 5, p771-787. 17p.
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  Data: <searchLink fieldCode="DE" term="%22Pressure+drop+%28Fluid+dynamics%29%22">Pressure drop (Fluid dynamics)</searchLink><br /><searchLink fieldCode="DE" term="%22Computational+fluid+dynamics%22">Computational fluid dynamics</searchLink><br /><searchLink fieldCode="DE" term="%22Fast+reactors%22">Fast reactors</searchLink><br /><searchLink fieldCode="DE" term="%22Reynolds+number%22">Reynolds number</searchLink><br /><searchLink fieldCode="DE" term="%22Sodium%22">Sodium</searchLink><br /><searchLink fieldCode="DE" term="%22Shearing+force%22">Shearing force</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: This work studies the hydrodynamics of the seven-pin wire-wrapped rod bundle in the sodium cartridge loop for the Versatile Test Reactor (VTR) through scaled water experiments and computational fluid dynamics (CFD) simulations. The scaling analysis is first performed to demonstrate the hydrodynamic similarity between water and sodium flows at the same Reynolds number R e. A separate-effects test facility is designed and constructed based on the scaling analysis. Detailed experimental data on the pressure drop covering a wide range of R e values (1165 to 27 689) are obtained, which are used to evaluate existing correlations for friction factor and to benchmark CFD simulations. The experimentally determined friction factors f E x p agree well with the Upgraded Cheng and Todreas Detailed Correlation and Pacio-Chen-Todreas Detailed Model within ± 7 % but are significantly underpredicted by Rehme's correlation by 25%. Various CFD near-wall treatment methods are tested using ANSYS Fluent and evaluated by experimental data. It is found that when the recommended wall y + values are met, most of the near-wall treatment methods can give accurate friction factor predictions. The resolved near-wall method ( y + ∼ 1) with the Shear Stress Transport k − ω turbulence model and the scalable wall functions ( y + > 12) with the realizable k − ε turbulence model can predict f E x p within ± 5 % . The standard wall functions ( y + > 30) and nonequilibrium wall functions ( y + > 30) with the realizable k − ε model can predict f E x p within ± 10%. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Nuclear Science & Engineering is the property of Taylor & Francis Ltd 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:
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        Value: 10.1080/00295639.2022.2082232
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      – Code: eng
        Text: English
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        PageCount: 17
        StartPage: 771
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      – SubjectFull: Pressure drop (Fluid dynamics)
        Type: general
      – SubjectFull: Computational fluid dynamics
        Type: general
      – SubjectFull: Fast reactors
        Type: general
      – SubjectFull: Reynolds number
        Type: general
      – SubjectFull: Sodium
        Type: general
      – SubjectFull: Shearing force
        Type: general
    Titles:
      – TitleFull: Pressure Drop in Seven-Pin Wire-Wrapped Rod Bundle for the Sodium Cartridge Loop in Versatile Test Reactor.
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            NameFull: Quan, Zhengting
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            NameFull: Dix, Adam
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              M: 05
              Text: May2023
              Type: published
              Y: 2023
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              Value: 197
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