【摘要】 针对六角形几何堆芯中子输运问题,研究了特征线法(MOC)求解算法。除了将在方形几何领域获得成功应用的组件模块化特征线产生方法等技术推广应用于六角形几何外,还针对六角形几何的特殊性,提出了基于"栅元重组"技术的粗网有限差分(CMFD)加速方法。针对迷你堆芯问题的验证计算表明,基于本方法研制的程序可获得满意的计算精度和良好的加速效果。更多还原

【Abstract】 A MOC code for hexagonal cores has been developed.Modular Ray Tracing proves to be successful and efficient in rectangular cores and will be employed into the hexagonal MOC code.To accelerate the MOC code,a CMFD method based on the"cell reformation"is developed.To verify the code,a mini-core benchmark problem is also established.According to the verification,the MOC code performs good precision and great speedup.更多还原