核反馈实时模拟程序  

Program for Real-Time Simulation of Reactivity Feedback

作　　者：吴小航[1] 赵华[1] 郑进文[1] 蒋序伦[1] 

机构地区：[1]中国核动力研究设计院空泡物理和自然循环重点实验室,成都610041

出　　处：《核动力工程》2006年第3期83-86,共4页Nuclear Power Engineering

摘　　要：为了在堆外实验中实现核反馈实时模拟,用C++语言开发了核反馈模拟程序。该程序由3个主要模块组成:反应性反馈模拟、功率控制系统模拟及反应堆模拟。采用的主要物理模型有:点堆模型、一维均匀流体模型、瞬态导热模型等;堆功率控制系统模拟方案为平均温度控制方案;其他辅助计算包括物性参数、几何参数的计算。用Retran-02计算分析数据对模拟程序进行了测试,结果表明,模拟程序的数学模拟正确,运算速度快,计算准确。The code to simulate reactivity feedback during out-of-pile testing has been developed with C＋＋ in the paper. Simulation of reactivity feedback, simulation of the system of power control and simulation of neutron kinetics are the main modules of the code. There are three main physical models, i.e., point-reactor model for neutron dynamic, one-dimensional homogenous flow model for hydrodynamic and one-dimensional transient heat conduction model for fuel dynamic in the code. The scheme of simulation of power control system is established with a conservative average reactor temperature. The auxiliary calculation modules such as calculation of physical property parameter and calculation of geometric parameter are also taken into account. Finally, the data given by Retran-02 are selected to validate the present code and the results indicate that our code meets the requirement of real-time simulation of reactivity feedback.

关 键 词：核反馈 实时模拟 程序 

分 类 号：TL375[核科学技术—核技术及应用]