数值核反应堆大数据及其应用

doi:10.11959/j.issn.2096-0271.2021048

摘要/Abstract

摘要：

数值核反应堆（数值堆）运行过程中涉及的海量数据可被用于优化现有数值堆模型、获取核能领域科学发现、推动数值堆研究。对现有的数据驱动建模和堆内微观现象预测的相关工作进行综述。在此基础上，结合领域特点提出了数值核反应堆大数据的概念，并分析了它作为工业大数据和模拟大数据的重要特征。以中国数值反应堆原型系统（CVR 1.0）为例，从数值堆大数据的多样性、关联性、非精确性等特征出发，运用神经网络、数理统计、数值分析等多学科的技术开展了建模优化和科学发现两个方向的研究工作，证明了数值核反应堆大数据特征对数值堆研究的指导作用。

关键词: 数值核反应堆大数据, 工业大数据, 数值核反应堆, 大数据挖掘

Abstract:

The massive amount of data involved in the operation of numerical nuclear reactor (numerical reactor) can be used to optimize existing numerical reactor models, obtain scientific discoveries in the field of nuclear energy, and promote numerical reactor research.Based on the review of the existing data-driven modeling and the prediction of microscopic phenomena in reactors, the concept of the big data of numerical nuclear reactor was put forward, and its important characteristics as industrial and simulation big data were analyzed according to the characteristics of the field of nuclear energy.Taking China virtual reactor 1.0 (CVR 1.0) as an example, starting from the variety, dependency and inaccuracy of the big data of numerical nuclear reactor, the research work of modeling optimization and scientific discovery was carried out by using the multidisciplinary techniques such as neural network, mathematical statistics and numerical analysis, which illustrates the guiding role of the characteristics of the big data of numerical nuclear reactors in numerical reactor research.

Key words: big data of numerical nuclear reactor, industrial big data, numerical nuclear reactor, big data mining

中图分类号:

TP274

汪岸, 任帅, 苗雪, 董玲玉, 朱迎, 陈丹丹, 胡长军. 数值核反应堆大数据及其应用[J]. 大数据, 2021, 7(5): 40-56.

An WANG, Shuai REN, Xue MIAO, Lingyu DONG, Ying ZHU, Dandan CHEN, Changjun HU. Big data of numerical nuclear reactor and its application[J]. Big Data Research, 2021, 7(5): 40-56.

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模型	原子体系	总势能/J	总势能相对偏差	计算时间/min
EAM	FeCu	1.449 0	-	20.332
AIPM	FeCu	1.459 2	0.7%	8.876

数据名称	取值
方位角数量x_a/个	4、12、20、28、36
平面轨迹间距x_l/cm	0.009 75、0.025、0.05、0.075、0.1
极角数量x_p/个	2、6、10、14、18
轴向轨迹间距x_z/cm	0.025、0.05、0.075、0.1

参数	取值
相关系数R	0.743 43
校正的拟合优度R²	0.549 07
标准误差	0.052 20
F统计量	152.899 76
F检验的P值	4.64×10^-85

变量	t统计量	t检验的P值	参数标准误差
方位角数量x_a/个	-5.468 06	7.23×10^-8	0.000 21
平面轨迹间距x_l/cm	0.230 65	0.817 68	0.071 36
极角数量x_p/个	-24.115 46	1.49×10^-85	0.000 41
轴向轨迹间距x_z/cm	-0.301 09	0.763 47	0.083 52

实验组	棒数/根	燃料棒半径r₁/mm	绕丝半径r₂/mm	相邻棒圆心距D/mm	棒与绕丝圆心距d/mm	流道长L/mm	流道宽I/mm	流道高H/mm	流体顶点量/个	固体顶点量/个
组1	2	3	0.475	6.95	3.3	15	8.5	10	309 408	2 304
组2	2	3	0.475	6.95	3.3	15	8.5	50	1 628 544	10 944
组3	2	3	0.475	6.95	3.3	15	8.5	100	3 270 016	21 888
组4	2	3	0.475	6.95	3.3	15	8.5	150	4 944 192	32 640
组5	4	3	0.475	6.95	3.3	15	15	100	6 220 096	43 776
组6	6	3	0.475	6.95	3.3	21.95	15	100	9 470 048	65 664