计算物理 ›› 2014, Vol. 31 ›› Issue (5): 505-513.

• 论文 •    下一篇

多群辐射输运计算的输运综合加速方法

李双贵1, 杨容1, 杭旭登1,2   

  1. 1. 北京应用物理与计算数学研究所, 北京 100094;
    2. 计算物理实验室, 北京 100088
  • 收稿日期:2013-09-10 修回日期:2014-01-30 出版日期:2014-09-25 发布日期:2014-09-25
  • 作者简介:李双贵(1976-),女,湖南衡东,博士,副研究员,从事辐射输运计算方法与数值模拟研究,E-mail:lishg@iapcm.ac.cn
  • 基金资助:
    国防基础科研计划(B1520110011);国家自然科学基金(91130002);国家863高技术惯性约束聚变专题资助项目

Transport Synthetic Acceleration Methods for Multi-group Radiative Transfer Calculations

LI Shuanggui1, YANG Rong1, HANG Xudeng1,2   

  1. 1. Institute of Applied Physics and Computational Mathematics, Beijing 100094, China;
    2. Laboratory of Computational Physics, Beijing 100088, China
  • Received:2013-09-10 Revised:2014-01-30 Online:2014-09-25 Published:2014-09-25

摘要: 研究多群辐射输运计算的源迭代输运综合加速方法,通过优化灰体输运综合加速,构造了双层嵌套的输运综合加速方法.数值算例表明新方法较灰体输运综合加速进一步提高计算效率,且适用于吸收系数强间断的高维复杂几何问题.

关键词: 多群辐射输运, 离散纵标方法, 源迭代, 输运综合加速方法

Abstract: Convergence of source iteration is analyzed for multi-group radiative transfer calculations. A two-level nesting transport acceleration method is developed. Numerical results show speedup factors of the scheme are higher than that of GTA method. The scheme is feasible for non-rectangle grid calculations of 2D problems with large discontinuities of material properties.

Key words: multi-group radiative transfer, discrete ordinate method, source iteration, transport synthetic acceleration

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