Numerical simulations of gas-liquid-particle three-phase flows using a hybrid method

Liancheng Guo, Koji Morita, Yoshiharu Tobita

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)


For the analysis of debris behavior in core disruptive accidents of liquid metal fast reactors, a hybrid computational tool was developed using the discrete element method (DEM) for calculation of solid particle dynamics and a multi-fluid model of a reactor safety analysis code, SIMMER-III, to reasonably simulate transient behavior of three-phase flows of gas-liquid-particle mixtures. A coupling numerical algorithm was developed to combine the DEM and fluid-dynamic calculations, which are based on an explicit and a semi-implicit method, respectively. The developed method was validated based on experiments of water-particle dam break and fluidized bed in systems of gas-liquid-particle flows. Reasonable agreements between the simulation results and experimental data demonstrate the validity of the present method for complicated three-phase flows with large amounts of solid particles.

Original languageEnglish
Pages (from-to)271-280
Number of pages10
Journaljournal of nuclear science and technology
Issue number2
Publication statusPublished - Feb 1 2016

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering


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