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机构地区:[1]第二炮兵工程学院,西安710025
出 处:《核动力工程》2007年第1期5-8,共4页Nuclear Power Engineering
摘 要:精细时程积分法是一种绝对稳定的显式积分方法。本文提出了用精细时程积分法求解点堆中子动力学方程组,给出了计算实例。结果表明,在大的时间步长条件下,精细时程积分法能很好地解决了点堆中子动力学方程组的刚性问题,同时具有计算过程简洁、速度快和精度高的特点,可用于反应堆的安全分析和仿真计算。The precise time integration algorithm is an explicit numerical integration algorithm with absolute stability, which was applied to solve the point reactor neutron kinetics equation in this paper, with the numerical examples provided. The results indicated that the precise time integration algorithm could solve the stiff problem of the point reactor neutron kinetics equation commendably in long time-step condition with additional traits such as compact computing process, fast velocity and high precision, which verifies the practicability and the availability of the method in the safety and simulation analysis of the reactor.
分 类 号:TL327[核科学技术—核技术及应用]
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