计算物理 ›› 2001, Vol. 18 ›› Issue (6): 563-568.

• 论文 • 上一篇    下一篇

中子扩散方程的混合间断有限元法

杨银苓, 郭秀兰, 马逸尘, 张志斌   

  1. 西安交通大学理学院, 陕西 西安 710049
  • 收稿日期:2001-02-02 修回日期:2001-02-08 出版日期:2001-11-25 发布日期:2001-11-25
  • 作者简介:杨银苓(1976-),女,云南,硕士生,从事偏微分方程反问题的研究.
  • 基金资助:
    国家自然科学基金(10001208)资助项目

MIXED AND DISCONTINUOUS FINITE ELEMENT METHOD USED TO NEUTRON DIFFUSION EQUATION

YANG Yin-ling, GUO Xiu-lan, MA Yi-chen, ZHANG Zhi-bin   

  1. Science College, Xi'an JiaoTong University, Xi'an 710049, P R China
  • Received:2001-02-02 Revised:2001-02-08 Online:2001-11-25 Published:2001-11-25

摘要: 构造了求解二维两群中子扩散方程的混合间断有限元格式,研制了相应的计算程序.计算结果表明这个格式是可行的.为了提高计算精度,还需进一步深入系统研究

关键词: 中子输运方程, 中子扩散方程, 混合间断有限元, Ravairt-Thomas元

Abstract: A variational formula combining mixed finite element method with discontinuous finite element method is derived for solving the two group neutron diffusion equation in 2D. According to the variational formula, a numerical test is given whose result proves that the variational formula is reasonable and practicable. In order to improve the precision of the calculation, there are more to be studied.

Key words: neutron transport equation, neutron diffusion equation, mixed and discontinuous finite element, Ravairt-Thomas element

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