求解反应堆动态方程的插值多项式法  

Interpolation polynomial Approach to Reactor Kinetics Equations

作　　者：田和春[1] 

机构地区：[1]中国原子能科学研究院

出　　处：《核动力工程》1989年第6期39-46,共8页Nuclear Power Engineering

摘　　要：本文利用三阶 Hermite 插值多项式法求解点堆动态方程,衰变热方程和反应性反馈方程。由于考虑了反应堆连续运行史对衰变热的影响,所给出的公式可精确计算反应堆运行瞬态和停堆后剩余功率随时间的变化。对例题的核算表明,上述方法允许很大的时间步长并保证很高的计算精度。In this paper,third-order Hermite polynomials are used to solve thepoint-reactor kinetics equations,decay heat equations and reactivity feedbackequations.Because the effect of continueous operation history on the decayheat is considered,using the formulae given in this paper can obtain accur-ate results not only for reactor operation transient but also for residual powerafter reactor shutdown.Test calculations for some example problems showthat this method permits large time step size and assures high accuracy.

关 键 词：反应堆 动态方程 插值多项式 反馈 

分 类 号：TL333[核科学技术—核技术及应用]