Simulation of JMCT based on JLAMT visualized modeling tool
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摘要: JMCT是中国工程物理研究院高性能数值模拟软件中心粒子输运团队自主研发的三维蒙特卡罗模拟软件，JLAMT为其前处理可视化建模工具。使用JLAMT和JMCT程序对BW，KRITZ，BEAVRS等系列基准题进行了模拟，并对有效增殖系数及计数功能进行了对比分析。其中有效增殖系数计算结果与MCNP5的最大偏差为KRITZ2装载方案19基准题的89.1 pcm，除BEAVRS基准题外的计数结果与MCNP5的偏差基本小于2%，平均偏差在1%左右；BEAVRS基准题功率分布模拟结果与MCNP5及实测值最大偏差分别为7.06%，16.6%，控制棒价值计算与MCNP5及实测值均吻合较好。,Abstract: The 3-D Monte Carlo transport code JMCT is developed by Software Center for High Performance Numerical Simulation independently and JLAMT is its pre-processing visualized modeling tool. Benchmarks including BW, KRITZ, BEAVRS et al were simulated by JMCT and MCNP5 codes, in addition, the effective multiplication factors and tally results were compared with the MCNP5 code and measured data separately. Effective multiplication factor calculations between two codes agree well with each other within 89.1 pcm for the KRITZ2 benchmark, the relative difference in power distribution between JMCT and MCNP5 is below 2% mostly, average difference is about 1%; as for BEAVRS benchmark, the maximum differences of the core radial power distribution of JMCT compared to MCNP5 and measurements are 7.06% and 16.6% respectively, JMCT control rod bank worth calculation results show good agreement of JMCT with MCNP5 and measurement.
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Key words:
- Monte Carlo /
- visualized modeling /
- neutron transport
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