摘要
为识别核素迁移数值模拟中的敏感参数,建立了基于拉丁超立方抽样和Spearman偏秩相关分析方法的全局参数灵敏度分析模型,定量计算了不同时刻3H在地下水中迁移的关键参数的灵敏度,分析了参数灵敏度的空间差异性和时间差异性,分析结果与物理规律相符,为进一步参数校准和不确定性分析奠定基础。
To identify the sensitive parameters in numerical simulation of radionuclide migration, a global sensitivity analysis model based on Latin hypercube sampling and Spearman partial rank correlation analysis methods is built. Sensitivities of key parameters at different periods of time are calculated. Spatial and temporal differences of parameter sensitivity are analyzed. The analysis results agree well with physical laws. This provides a basis for further work to calibrate the parameters and analyze the uncertainty.
出处
《核技术》
CAS
CSCD
北大核心
2012年第10期771-774,共4页
Nuclear Techniques
关键词
地下水
核素迁移
灵敏度分析
Groundwater, Radionuclide migration, Sensitivity analysis
