Comparison of neutron transport calculation methods based on C5G7-MOX and preliminary analysis of sensitivity of MOC parameters

Table 1. 2D C5G7-MOX fuel assembly calculation results
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Table 1. 2D C5G7-MOX fuel assembly calculation results
计算方法
Computing method
耗时
Elapsed time / min
内存开销
Memory overhead / MB
相对误差
Relative error / 10^-5
MOC 23.9 37.5 60.4
CP 1 355.6 15 291.1 61.4
IC 374.1 1 233.4 3 899.6

Table 2. Parameter type and selection interval

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Table 2. Parameter type and selection interval

参数类型 Parameter type	选择区间 Selection interval
极角类型Polar angle type	GAUS、LCMD、CACB
极角数目Number of polar angles	2、3
方位角Azimuth angles	8、12、16、30、32、64
线密度Linear density / cm^-1	8、10、12、15、20
网格划分Mesh generation	2×2、4×4、6×6、8×8

Table 3. Calculation results under different azimuth angles

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Table 3. Calculation results under different azimuth angles

方位角 Azimuth angles	耗时 Elapsed time / s	内存开销 Memory overhead / kB	相对误差 Relative error / 10^-5
8	890.06	268 492	51.16
12	1 345.66	271 336	21.83
16	1 729.97	281 766	13.23
30	2 671.79	271 202	5.90
32	2 723.28	271 056	5.90
64	2 537.84	271 412	5.90

Table 4. Calculation results obtained under different characteristic linear densities

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Table 4. Calculation results obtained under different characteristic linear densities

特征线密度 Characteristic linear densities / cm^-1	耗时 Elapsed time / s	内存占用 Memory overhead / kB	相对误差 Relative error / 10^-5
8	1 807.41	271 382	14.16
10	2 409.81	272 808	10.87
12	2 662.86	271 268	5.90
15	2 856.16	273 492	22.50
20	3 487.05	282 894	12.30

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Hanyuan GONG, Binhang ZHANG, Yonghong ZHANG, Haibo TANG, Xianbao YUAN. Comparison of neutron transport calculation methods based on C5G7-MOX and preliminary analysis of sensitivity of MOC parameters[J]. NUCLEAR TECHNIQUES, 2024, 47(10): 100601

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