控制棒落棒动力学数值计算  

Dynamics Numerical Calculation for Control Rod Drop

作　　者：张吉斌[1] 高希龙[1] 何航行 宫汝志[2] 马超[1] 岳宁 Zhang Jibin;Gao Xilong;He Hangxing;Gong Ruzhi;Ma Chao;Yue Ning(Science and Technology on Reactor System Design Technology Laboratory,Nuclear Power Institute of China,Chengdu,610213,China;School of Energy Science and Engineering,Harbin Institute of Technology,Harbin,150001,China)

机构地区：[1]中国核动力研究设计院核反应堆系统设计技术重点实验室,成都610213 [2]哈尔滨工业大学能源科学与工程学院,哈尔滨150001

出　　处：《核动力工程》2020年第6期218-223,共6页Nuclear Power Engineering

摘　　要：控制棒在安全停堆时的下落时间和下落规律是核电厂安全分析的重要参数。本文针对一种超临界水冷堆控制棒组件,采用计算流体动力学(CFD)瞬态动网格数值分析方法研究某控制棒的下落过程,分析其流场演化规律,并得到了控制棒下落过程中位移随时间、速度随时间及加速度随时间的变化规律。同时,研究了控制棒、通道发生变形时对控制棒下落规律的影响。本文的计算方法及结果对控制棒结构优化具有指导意义。The dropping time and profile of control rods are important parameters during the safety evaluation of nuclear power plants. CFD method and dynamic mesh were used to study the dropping profile of the control rod and flow evolution. The changes of displacement, velocity and acceleration versus time during the dropping of the control rod are obtained. Meanwhile, the effect of the deformation of the control rod and channel on the control rod dropping is evaluated. The results of the work are of help to the design and optimization of the structure of control rods.

关 键 词：控制棒 计算流体动力学 下落规律 流场演化 

分 类 号：TL371[核科学技术—核技术及应用]