哈尔滨工程大学学报2024，Vol.45Issue(12)：2369-2376,8.DOI:10.11990/jheu.202411014
二维任意几何特征线法长射线加速方法性能研究
Macro-track transport acceleration performance for the method of characteristics in arbitrary 2D geometry
摘要
Abstract
To overcome the geometric description limitations imposed by the coarse mesh acceleration method,arbi-trary low-order angular approximations and low-order track approximations are introduced into the macro-track trans-port acceleration(MTTA)method.The acceleration performance of this method is tested using multiple benchmark problems from various reactor types,such as molten salt reactors,heavy water reactors,and pressurized water reac-tors.Results demonstrate that the MTTA method exhibits strong adaptability,effectively accelerating benchmark problems with various fuel forms and moderators,achieving an acceleration effect of approximately 20 times.This method achieves acceleration results comparable to those of traditional coarse mesh finite difference methods,sol-ving the problem of low time acceleration ratios.关键词
中子输运数值模拟/长射线加速方法/特征线法/二维任意几何/构造实体几何/低阶角度近似/低阶射线近似/基准题验证Key words
neutron transport numerical simulation/macro-track transport acceleration/method of characteristics/arbitrary 2D geometry/constructive solid geometry/low-order angular approximation/low-order ray approximation/benchmark problem verification分类
能源科技引用本文复制引用
郭建,朱贵凤,严睿,邹杨..二维任意几何特征线法长射线加速方法性能研究[J].哈尔滨工程大学学报,2024,45(12):2369-2376,8.基金项目
中国科学院引才计划青年项目(SINAP-YCJH-202303) （SINAP-YCJH-202303）
上海市自然科学基金项目(24ZR1478400). （24ZR1478400）
