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Coupled neutronics–fuel behavior calculations in steady state using the Serpent 2 Monte Carlo code.

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Title: Coupled neutronics–fuel behavior calculations in steady state using the Serpent 2 Monte Carlo code.
Authors: Valtavirta, Ville1 ville.valtavirta@vtt.fi, Leppänen, Jaakko1, Viitanen, Tuomas1
Source: Annals of Nuclear Energy. Feb2017 Part 2, Vol. 100, p50-64. 15p.
Subjects: Enigma cipher system, Radial basis functions, Approximation theory, Inertial confinement fusion, Controlled fusion
Abstract: This paper describes the recent developments in the multi-physics capabilities of the Serpent Monte Carlo code concerning coupled multi-physics calculations with fuel behavior feedback. We cover the structure and operation of the fuel behavior interface in Serpent 2 as well as the coupled calculation routines implemented for steady state multi-physics calculations with any internally or externally coupled solver. The intended solution flow and code-to-code communication in internally and externally coupled multi-physics simulations is described alongside with the stochastic approximation based solution relaxation methods implemented in Serpent. The two-level multi-physics coupling scheme in Serpent 2 is demonstrated by obtaining a coupled solution for the neutronics–fuel behavior problem using first the internally coupled FINIX fuel behavior module and then the externally coupled ENIGMA fuel performance code in a 3D assembly geometry. Parameters such as maximum pellet centerline temperatures can be evaluated from the coupled solution. The temperature fields obtained from the coupled solution are also used to estimate the effect of the detailed radial representation of the fuel temperature distribution compared to various radially averaged effective fuel temperature representations. The convergence of the coupled solution is investigated alongside the possibility to speed up the convergence by using the Uniform Fission Sites method. [ABSTRACT FROM AUTHOR]
Copyright of Annals of Nuclear Energy is the property of Pergamon Press - An Imprint of Elsevier Science 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.)
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DbLabel: Engineering Source
An: 119583371
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  Data: Coupled neutronics–fuel behavior calculations in steady state using the Serpent 2 Monte Carlo code.
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  Data: <searchLink fieldCode="AR" term="%22Valtavirta%2C+Ville%22">Valtavirta, Ville</searchLink><relatesTo>1</relatesTo><i> ville.valtavirta@vtt.fi</i><br /><searchLink fieldCode="AR" term="%22Leppänen%2C+Jaakko%22">Leppänen, Jaakko</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Viitanen%2C+Tuomas%22">Viitanen, Tuomas</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Annals+of+Nuclear+Energy%22">Annals of Nuclear Energy</searchLink>. Feb2017 Part 2, Vol. 100, p50-64. 15p.
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  Data: <searchLink fieldCode="DE" term="%22Enigma+cipher+system%22">Enigma cipher system</searchLink><br /><searchLink fieldCode="DE" term="%22Radial+basis+functions%22">Radial basis functions</searchLink><br /><searchLink fieldCode="DE" term="%22Approximation+theory%22">Approximation theory</searchLink><br /><searchLink fieldCode="DE" term="%22Inertial+confinement+fusion%22">Inertial confinement fusion</searchLink><br /><searchLink fieldCode="DE" term="%22Controlled+fusion%22">Controlled fusion</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: This paper describes the recent developments in the multi-physics capabilities of the Serpent Monte Carlo code concerning coupled multi-physics calculations with fuel behavior feedback. We cover the structure and operation of the fuel behavior interface in Serpent 2 as well as the coupled calculation routines implemented for steady state multi-physics calculations with any internally or externally coupled solver. The intended solution flow and code-to-code communication in internally and externally coupled multi-physics simulations is described alongside with the stochastic approximation based solution relaxation methods implemented in Serpent. The two-level multi-physics coupling scheme in Serpent 2 is demonstrated by obtaining a coupled solution for the neutronics–fuel behavior problem using first the internally coupled FINIX fuel behavior module and then the externally coupled ENIGMA fuel performance code in a 3D assembly geometry. Parameters such as maximum pellet centerline temperatures can be evaluated from the coupled solution. The temperature fields obtained from the coupled solution are also used to estimate the effect of the detailed radial representation of the fuel temperature distribution compared to various radially averaged effective fuel temperature representations. The convergence of the coupled solution is investigated alongside the possibility to speed up the convergence by using the Uniform Fission Sites method. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Annals of Nuclear Energy is the property of Pergamon Press - An Imprint of Elsevier Science 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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      – Type: doi
        Value: 10.1016/j.anucene.2016.10.015
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      – Code: eng
        Text: English
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        PageCount: 15
        StartPage: 50
    Subjects:
      – SubjectFull: Enigma cipher system
        Type: general
      – SubjectFull: Radial basis functions
        Type: general
      – SubjectFull: Approximation theory
        Type: general
      – SubjectFull: Inertial confinement fusion
        Type: general
      – SubjectFull: Controlled fusion
        Type: general
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      – TitleFull: Coupled neutronics–fuel behavior calculations in steady state using the Serpent 2 Monte Carlo code.
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              M: 02
              Text: Feb2017 Part 2
              Type: published
              Y: 2017
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