摘要
为了简化六角形组件的均匀化过程,提高均匀化方法对组件几何形状的适应性,提出一种简单、有效的六角形组件不规则栅元等效方法,即在保证各种成份质量不变的条件下,将元件盒及边界水隙等不规则栅元等效成均匀、规则的六角形栅元。数值计算结果表明,该方法能够准确预测组件反应性及功率分布随燃耗的变化。
In order to simplify the calculation process of hexagonal assembly homogenization,and en-hance the adaptability of homogenization method for hexagonal geometry,a simple irregular region transfor-mation method is proposed in this paper,by which these irregular regions such as assembly wrapper and water gap can be transformed into regular hexagon with the constraint condition that material mass remains con-stantly.The numerical results show that it is a very accurate and efficient method for the prediction of assem-bly reactivity and normalization power distribution versus burnup.
出处
《核动力工程》
EI
CAS
CSCD
北大核心
2011年第5期1-4,共4页
Nuclear Power Engineering
关键词
六角形组件
均匀化
不规则栅元
等效方法
Hexagonal assembly
Homogenization
Irregular region
Transformation method
