Sensitivity Analysis Based on 2D/1D Transport Code KYCORE
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摘要: 本研究基于2D/1D输运程序KYCORE开发了共轭敏感性分析(ASA)和基于减秩模型(ROM)的前向敏感性分析(FSA)功能,并在TMI-1压水堆栅元基准题进行了验证。结果表明,KYCORE与RMC计算的有效增殖因子(keff)对235U每个能群的裂变截面和俘获截面的敏感性系数符合良好,但在共振能量附近,两者有些差异;基于ROM的fsa方法计算得到的敏感性系数与直接扰动法(DNP)计算得到的敏感性系数一致。因此,本研究所开发的基于2D/1D输运程序KYCORE ASA和基于rom的FSA功能正确。
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关键词:
- 共轭敏感性分析(ASA) /
- 减秩模型(ROM) /
- 向前敏感性分析(FSA) /
- 2D/1D输运
Abstract: Adjoint sensitivity analysis(ASA) and the forward sensitivity analysis(FSA) based on the reduced order module(ROM) were developed on the 2D/1D transport code KYCORE. Sensitivity analysis on the TMI-1 PWR cell benchmark was performed. Results show that sensitivity coefficients of the effective multiplication factor(keff) with respect to 235 U fission and capture cross sections calculated by KYCORE and RMC agree well with each other. However, the dependency exists in the resonance region. Sensitivity coefficients calculated by the FSA based on the ROM and the direct numerical perturbation(DNP) are consistent. Therefore, ASA and the FSA based on the ROM developed on the 2D/1D transport code KYCORE are verified. -
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