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A Multi-physics Compressible-Incompressible Computational Framework for Mechanistic Simulation of Steam Explosion in Fuel-Coolant Interaction

Research Project

Project/Area Number 19K15478
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 31010:Nuclear engineering-related
Research InstitutionThe University of Tokyo

Principal Investigator

DUAN Guangtao  東京大学, 大学院工学系研究科(工学部), 特任助教 (40804852)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
KeywordsParticle method / MPS method / SPH method / Vaporization / Solidification / Multiphase flow / Particle methods / Heat transfer / Fuel-coolant interaction / Vapor expansion / Solidfication
Outline of Research at the Start

The study couples the compressible and incompressible particle solvers to mechanistically model the simultaneous boiling and solidification phenomena, paving the way for directly simulating steam explosion in fuel-coolant interaction.

Outline of Final Research Achievements

A novel vaporization model was proposed for particle methods. A new advanced particle method was developed to simulate the key multi-physical phenomena in fuel-coolant interaction.
Sensitivity analysis demonstrated that initial temperature had the most significant influence on melt fragmentation.

Academic Significance and Societal Importance of the Research Achievements

The proposed models can significantly improve the theory of particle methods and greatly expand the application range of numerical methods.
The proposed method can help to deepen the understanding of the severe accident progression in nuclear power plants.

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (12 results)

All 2022 2021 2020

All Journal Article (5 results) (of which Peer Reviewed: 5 results,  Open Access: 2 results) Presentation (7 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] New insights into error accumulation due to biased particle distribution in semi-implicit particle methods2022

    • Author(s)
      Duan Guangtao、Matsunaga Takuya、Koshizuka Seiichi、Yamaguchi Akira、Sakai Mikio
    • Journal Title

      Computer Methods in Applied Mechanics and Engineering

      Volume: 388 Pages: 114219-1142159

    • DOI

      10.1016/j.cma.2021.114219

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] An enhanced semi-implicit particle method for simulating the flow of droplets with free surfaces2022

    • Author(s)
      Duan Guangtao、Sakai Mikio
    • Journal Title

      Computer Methods in Applied Mechanics and Engineering

      Volume: 389 Pages: 114338-114370

    • DOI

      10.1016/j.cma.2021.114338

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A multiphase MPS method coupling fluid-solid interaction/phase-change models with application to debris remelting in reactor lower plenum2022

    • Author(s)
      Duan Guangtao、Yamaji Akifumi、Sakai Mikio
    • Journal Title

      Annals of Nuclear Energy

      Volume: 166 Pages: 108697-108718

    • DOI

      10.1016/j.anucene.2021.108697

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Imposing accurate wall boundary conditions in corrective‐matrix‐based moving particle semi‐implicit method for free surface flow2021

    • Author(s)
      Duan Guangtao、Matsunaga Takuya、Yamaji Akifumi、Koshizuka Seiichi、Sakai Mikio
    • Journal Title

      International Journal for Numerical Methods in Fluids

      Volume: 93 Issue: 1 Pages: 148-175

    • DOI

      10.1002/fld.4878

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] An incompressible-compressible Lagrangian particle method for bubble flows with a sharp density jump and boiling phase change2020

    • Author(s)
      Duan Guangtao、Yamaji Akifumi、Sakai Mikio
    • Journal Title

      Computer Methods in Applied Mechanics and Engineering

      Volume: 372 Pages: 113425-113464

    • DOI

      10.1016/j.cma.2020.113425

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] A stable free-surface-detection method for consistent high-order MPS method2022

    • Author(s)
      Guangtao Duan, Mikio Sakai
    • Organizer
      日本原子力学会 2022年春の大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Accumulation Mechanism of Bias Error at Free Surface in High-order Particle Method2021

    • Author(s)
      Guangtao Duan, Takuya Matsunaga, Seiichi Koshizuka, Akifumi Yamaguchi, Mikio Sakai
    • Organizer
      International Conference on Particle-based Methods (PARTICLES2021)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Numerical investigation of debris remelting in RPV lower head by a multiphase particle method2021

    • Author(s)
      Guangtao Duan, Mikio Sakai
    • Organizer
      日本保全学会 第17回学術講演会
    • Related Report
      2021 Annual Research Report
  • [Presentation] A MPS method with consistent high-order schemes for droplet simulations2021

    • Author(s)
      Guangtao Duan, Mikio Sakai
    • Organizer
      日本原子力学会 2021年秋の大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] A new conditional density smoothing scheme for multiphase particle method with high and sharp density jump2021

    • Author(s)
      Guangtao Duan, Mikio Sakai
    • Organizer
      日本混相流学会 混相流シンポジウム
    • Related Report
      2021 Annual Research Report
  • [Presentation] A boiling phase change model for particle methods based on the incompressible-compressible algorithm2021

    • Author(s)
      Duan Guangtao、Yamaji Akifumi、Sakai Mikio
    • Organizer
      Atomic Energy Society of Japan 2021 Spring Meeting
    • Related Report
      2020 Research-status Report
  • [Presentation] Enforcing Accurate Boundary Conditions in Corrected MPS Method for Free Surface Flow2020

    • Author(s)
      Duan Guangtao、Matsunaga Takuya、Yamaji Akifumi、Koshizuka Seiichi、Sakai Mikio
    • Organizer
      14th World Congress in Computational Mechanics (WCCM)
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research

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Published: 2019-04-18   Modified: 2023-01-30  

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