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BWR spacer grid modeling using serpent 2 / star-CCM+ coupling

  • Alexander Bennett
  • , George Bache
  • , Nicolas Martin
  • , Jaron Senecal

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Spacer grids are located in assemblies to add structural support and additional coolant mixing. To accurately model a spacer grid, a coupling is created between the Monte Carlo neutronics code SERPENT and the CFD code STAR-CCM+®. The coupled code is used to simulate a single axial section of a BWR mini assembly with a spacer grid. The mini assembly is analyzed at two different inlet conditions, nominal BWR inlet conditions, and 15% void. The coupled calculation gave detailed results for both of these cases. The effect of various spacer grid modeling assumptions was also analyzed. Homogenizing the spacer grid into the coolant at the location of the spacer grid is found to give similar results as modeling the spacer grid explicitly.

Original languageEnglish
Title of host publicationInternational Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering, M and C 2019
PublisherAmerican Nuclear Society
Pages1761-1769
Number of pages9
ISBN (Electronic)9780894487699
StatePublished - 2019
Externally publishedYes
Event2019 International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering, M and C 2019 - Portland, United States
Duration: Aug 25 2019Aug 29 2019

Publication series

NameInternational Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering, M and C 2019

Conference

Conference2019 International Conference on Mathematics and Computational Methods Applied to Nuclear Science and Engineering, M and C 2019
Country/TerritoryUnited States
CityPortland
Period08/25/1908/29/19

Keywords

  • BWR
  • SERPENT
  • STAR-CCM+
  • Spacer Grid

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