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Non-linear eddy viscosity models for modeling the turbulent phenomena in molten salt reactors

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

Abstract

Molten Salt Reactors (MSRs) presents the particularity of having a liquid nuclear fuel. In this liquid nuclear fuel, the nuclear power production is coupled to the thermal and velocity fields. Hence, it is necessary to accurately modeling the velocity field for avoiding the introduction of errors in the coupled system. Nevertheless, the accurate modeling of the velocity field is challenging because the flows in MSRs are turbulent. In the present work, a procedure for the development of Non-Linear Eddy Viscosity Models (NLEVMs) adapted for the geometries of MSRs is presented. These models are a set of RANS models that allows providing a good compromise between accuracy and computational cost. Furthermore, the procedure is analyzed on a Backward Facing Step geometry, which is resembles the turbulent phenomena produced in the entrance to the core cavity of some MSRs.

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
Pages387-396
Number of pages10
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

  • MSRs
  • Molten salts
  • Non-linear models
  • Turbulence

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