Zhiwei ZONG, Maosong CHENG. A two-dimensional finite element shielding calculation code with mass-matrix lumping technique and unstructured meshes[J]. NUCLEAR TECHNIQUES, 2023, 46(2): 020602
- NUCLEAR TECHNIQUES
- Vol. 46, Issue 2, 020602 (2023)
Fig. 1. Calculation flowchart of ThorSNIPE
Fig. 2. Geometry of BWR cell benchmark
Fig. 3. Geometry of Argonne-5-A1 benchmark
Fig. 4. Scalar flux distribution of group 1 (a) CGFEM-no, (b) CGFEM-mass, (c) DGFEM-no
Fig. 5. Scalar flux distribution of group 2 (a) CGFEM-no, (b) CGFEM-mass, (c) DGFEM-no
Fig. 6. Percent deviation of calculated value and reference value of group 1 (a) and group 2 (b)
Fig. 7. Geometric structure diagram of Dog leg duct benchmark
Fig. 8. Correlation comparison between L2-error norm and mesh computing under different calculation models
Fig. 9. Scalar fluxes distribution (a) and percent deviation of scalar fluxes (b) along Y at X=6.0 cm
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Table 1. Isotropic cross sections
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Table 2. Average scalar fluxes and eigenvalues in regions 1 and 2
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Table 3. Isotropic cross sections and source density
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Table 4. Isotropic cross sections and source density
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Table 5. Strict non-negativity under different calculation models
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