Research on and Code Development of Direct Simulation Method for Neutron Space-Time Kinetics
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摘要: 直接模拟方法(DSM)是一种新的用于求解三维瞬态中子输运问题的方法。该方法通过直接模拟瞬态过程中系统内中子和缓发中子先驱核的动态行为来求解核反应堆动力学问题。由于该方法取消了现有方法的各种近似,具有普适通用性。本文在详细研究该方法的基础上,开发了相应的瞬态分析程序TMCC,并进行了算例的验证。Abstract: DSM (Direct Simulation Method) is a new method for the transient,three-dimensional neutron transport problems.In this method,the transient problems are solved by simulating the dynamic behaviors of neutrons and precursors of delayed neutrons during the transient process.It is with universal use since it eliminates various approximations.In this paper,the method is studied in detail and the relevant transient analysis code is developed.Finally,some numerical results are presented.
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Key words:
- Neutron transport /
- Neutron space-time kinetics /
- Direct simulation /
- Continuum energy /
- Transient
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