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

Liancheng Guo, Koji Morita, Yoshiharu Tobita

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

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
Volume53
Issue number2
DOIs
Publication statusPublished - Feb 1 2016

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Finite difference method
Core disruptive accidents
Fast reactors
Computer simulation
Liquids
liquids
Fluid dynamics
Liquid metals
Gases
gases
Debris
Fluidized beds
Dams
Flow of gases
simulation
Fluids
reactor safety
dams
Water
fluid dynamics

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering

Cite this

Numerical simulations of gas-liquid-particle three-phase flows using a hybrid method. / Guo, Liancheng; Morita, Koji; Tobita, Yoshiharu.

In: journal of nuclear science and technology, Vol. 53, No. 2, 01.02.2016, p. 271-280.

Research output: Contribution to journalArticle

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