High Power Laser and Particle Beams, Volume. 37, Issue 2, 026001(2025)

Development of INSL-UniFoam: a multi-physics integrated criticality safety analysis program

Siyuan Ye, Honglong Li, Yuehang Li, Xiang Chai, Xiaojing Liu, and Donghao He*
Author Affiliations
  • School of Nuclear Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
  • show less
    Figures & Tables(13)
    Calculation flowchart of INSL-UniFoam
    Meshing model of Godiva-I by different tools
    S4 and S8 fully symmetric quadrature sets
    Total reactor power over time with initial reactor periods of 29.5 μs
    Changes in average temperature and average volume expansion rate of the reactor over time
    Distribution of power field at the point of maximum power and the stress distribution after the pulse peak
    • Table 1. Calculated keff of Godiva-I in different orders of scattering matrices

      View table
      View in Article

      Table 1. Calculated keff of Godiva-I in different orders of scattering matrices

      scattering matrixkefferror/10−5
      OpenMC0.99456
      P01.0945510003
      P10.979711487
      P30.98583869
    • Table 2. Calculated keff in different meshes

      View table
      View in Article

      Table 2. Calculated keff in different meshes

      meshing toolcell numberkefferror/10−5
      OpenMC0.99456
      blockMesh560000.99272184
      Gmsh601870.99971515
      3848030.9952973
    • Table 3. Energy grids of different energy group structures

      View table
      View in Article

      Table 3. Energy grids of different energy group structures

      33 group energy grid/MeV8 group energy grid/MeV
      1.964033E+011.831564E-012.034684E-032.260329E-051.00E+01
      1.000000E+011.110900E-011.234098E-031.370959E-058.21E-01
      6.065307E+006.737947E-027.485183E-048.315287E-065.53E-03
      3.678794E+004.086771E-024.539993E-044.000000E-064.00E-06
      2.231302E+002.478752E-023.043248E-045.400000E-076.25E-07
      1.353353E+001.503439E-021.486254E-041.000000E-072.80E-07
      8.208500E-019.118820E-039.166088E-051.000010E-111.40E-07
      4.978707E-015.530844E-036.790405E-055.80E-08
      3.019738E-013.354626E-034.016900E-051.00E-11
    • Table 4. Calculated keff in different energy groups

      View table
      View in Article

      Table 4. Calculated keff in different energy groups

      energy group numberkeffError/10−5
      OpenMC0.99456
      10.959743482
      80.99282174
      330.9937779
    • Table 5. Calculated keff in different quadrature sets

      View table
      View in Article

      Table 5. Calculated keff in different quadrature sets

      quadrature setkefferror/10−5
      OpenMC0.99456
      S20.940145442
      S40.99272184
      S80.99282174
    • Table 6. Thermo-mechanical parameters of Godiva-I

      View table
      View in Article

      Table 6. Thermo-mechanical parameters of Godiva-I

      density/(kg·m−3)Poisson’s ratio/GPaYoung’s modulusspecific heat capacity/(J·kg−1·K−1)thermal conductivity/(W·m−1·K−1)coefficient of linear expansion/K−1
      187400.23208117.727.51.39$ \times $10−5
    • Table 7. Additional thermo-mechanical parameters of Godiva-I

      View table
      View in Article

      Table 7. Additional thermo-mechanical parameters of Godiva-I

      peak power/Wfull width at half maximum/s
      INSL-UniFoam7.397E+88.4E-5
      experiment result8.223E+811.1E-5
    Tools

    Get Citation

    Copy Citation Text

    Siyuan Ye, Honglong Li, Yuehang Li, Xiang Chai, Xiaojing Liu, Donghao He. Development of INSL-UniFoam: a multi-physics integrated criticality safety analysis program[J]. High Power Laser and Particle Beams, 2025, 37(2): 026001

    Download Citation

    EndNote(RIS)BibTexPlain Text
    Save article for my favorites
    Paper Information

    Category:

    Received: Oct. 22, 2024

    Accepted: Dec. 24, 2024

    Published Online: Mar. 25, 2025

    The Author Email: Donghao He (donghaohe@sjtu.edu.cn)

    DOI:10.11884/HPLPB202537.240369

    Topics