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点动力学计算程序MIPK是以作者在1985年提出的累积分法为基础的一个实用程序。它的基本思想是:点动力学方程解的强刚性问题使被积函数的解析性能复杂化,微分运算进一步恶化现状,而积分运算则起改善作用。累积分法和其它方法的不同点在于:它将“积分”处理贯彻始终,在二阶近似下得到十分简单的中子密度的步进显式解。它的精度以及对各类瞬变问题的适应能力十分令人满意。
The point dynamics calculation program MIPK is a utility based on the cumulative score proposed by the author in 1985. Its basic idea is that the strong rigidity problem of the solution of point kinetic equation complicates the analytical performance of the integrand function, the differential operation further deteriorates the status quo, and the integral operation plays an improving role. The difference between the cumulative method and other methods is that it implements “integral ” processing consistently and gives a very simple step-by-step explicit solution of neutron density in the second-order approximation. Its accuracy and adaptability to various types of transient problems are very satisfying.