基于广义等价理论的高保真共振计算方法
发布时间：2018-09-18 14:12
【摘要】：采用伪核素方法,建立了能够精确快速处理干涉效应的计算方法,在分析广义等价理论特点的基础上,提出了高保真的共振计算方法。该方法首先根据实际问题的几何,建立238 U的非均匀共振积分表,基于此核素采用广义等价理论处理栅元间的互屏效应,获得不同位置燃料棒的背景截面,然后根据背景截面在非均匀截面表中插值建立不同燃料棒的等效栅元,在此栅元的基础上根据实际问题中燃料棒内的温度分布和核素分布进行超细群计算,从而获得燃料棒内不同位置共振核素高保真的有效共振截面。
[Abstract]:Based on the analysis of the characteristics of generalized equivalence theory, a high fidelity resonance calculation method is proposed by using pseudonuclide method to calculate the interference effect accurately and quickly. Firstly, according to the geometry of practical problems, a non-uniform resonance integral table of 238 U is established. Based on the generalized equivalence theory, the cross-section of fuel rods with different positions is obtained by using the generalized equivalence theory to deal with the cross-screen effect between grid elements. Then the equivalent grid elements of different fuel rods are established by interpolation in the non-uniform cross-section table according to the background section. Based on the grid element, the ultrafine group calculation is carried out according to the temperature distribution and nuclide distribution in the fuel rod in the actual problem. The effective resonance cross section of the high fidelity resonance nuclide at different positions in the fuel rod is obtained.
【作者单位】： 西安交通大学核科学与技术学院;
【基金】：国家自然科学基金项目(11605128) 中国博士后基金项目(2015M580854)
【分类号】：TL329.2
本文编号：2248166
[Abstract]:Based on the analysis of the characteristics of generalized equivalence theory, a high fidelity resonance calculation method is proposed by using pseudonuclide method to calculate the interference effect accurately and quickly. Firstly, according to the geometry of practical problems, a non-uniform resonance integral table of 238 U is established. Based on the generalized equivalence theory, the cross-section of fuel rods with different positions is obtained by using the generalized equivalence theory to deal with the cross-screen effect between grid elements. Then the equivalent grid elements of different fuel rods are established by interpolation in the non-uniform cross-section table according to the background section. Based on the grid element, the ultrafine group calculation is carried out according to the temperature distribution and nuclide distribution in the fuel rod in the actual problem. The effective resonance cross section of the high fidelity resonance nuclide at different positions in the fuel rod is obtained.
【作者单位】： 西安交通大学核科学与技术学院;
【基金】：国家自然科学基金项目(11605128) 中国博士后基金项目(2015M580854)
【分类号】：TL329.2
【相似文献】
相关期刊论文 前1条
1 张乾;吴宏春;曹良志;郑友琦;;等价理论的偏差分析与改进研究[J];原子能科学技术;2013年S2期
，本文编号：2248166
本文链接：https://www.wllwen.com/kejilunwen/wulilw/2248166.html
