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蒙特卡罗程序已经广泛应用在裂变反应堆设计和验证过程中,快速获得高效的计算模型可以有效缩短反应堆的设计周期。本研究提出并实现了一种裂变堆芯快速蒙特卡罗建模的方法,该方法基于参数可视化和层次化两种建模思想快速构建出精细裂变堆芯计算机辅助设计(Computer Aided Design,CAD)模型且将其快速转换成蒙特卡罗计算模型,同时采用一种新的堆芯分段管理方法实现了大规模裂变堆模型流畅交互。基于此方法快速构建了加速器驱动次临界反应堆(Accelerator Driven Sub-critical System,ADS)的精细堆芯模型,通过与蒙特卡罗程序计算的参考结果进行对比,证明了此建模方法的高效性和可靠性。
Monte Carlo procedures have been widely used in the fission reactor design and verification process, the rapid availability of efficient computational models can effectively shorten the reactor design cycle. In this study, a fast Monte Carlo modeling method for fission core was proposed and implemented. This method quickly builds a Computer Aided Design (CAD) model of fissile core based on the visualization of parameters and hierarchical modeling It is quickly converted to a Monte Carlo calculation model, and a new core segmentation management method is used to achieve the smooth interaction of large-scale fission reactor models. Based on this method, a precise core model of Accelerator Driven Sub-critical System (ADS) is rapidly constructed. Compared with the reference results calculated by the Monte Carlo program, this method is proved to be efficient and accurate. reliability.