Dynamic mode decomposition of numerical data in natural circulation

Autores

  • Jose Luiz Horacio Faccini Instituto de Engenharia Nuclear - IEN/CNEN
  • Eliaquim Monteiro Ramos Laboratório Nacional de Computação Científica - LNCC
  • Francisco Rogerio Teixeira do Nascimento Instituto de Engenharia Nuclear - IEN/CNEN
  • Gabriella Machado Darze Instituto de Engenharia Nuclear - IEN/CNEN
  • Gilson Antonio Giraldi Laboratório Nacional de Computação Científica - LNCC

Resumo

Dynamic mode decomposition (DMD) has been used for experimental and numerical data analysis in fluid dynamics. Despite of its advantages, the application of the DMD methodology to investigate the natural circulation in nuclear reactors are very scarce in literature. In this paper it is applied the traditional DMD and its variation, the sparsity-promoting dynamic mode decomposition (SPDMD), for analysis of temperature and velocity fields data, generated by computational simulation of an experimental setup in reduced scale, similar to a heat removal system by natural circulation of a pool-type research reactor.

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Publicado

2021-08-12

Edição

Seção

Nuclear Reactor Engineering and Technology