中子扩散方程的混合间断有限元法  

MIXED AND DISCONTINUOUS FINITE ELEMENT METHOD USED TO NEUTRON DIFFUSION EQUATION

作　　者：杨银苓[1] 郭秀兰[1] 马逸尘[1] 张志斌[1] 

机构地区：[1]西安交通大学理学院,陕西西安710049

出　　处：《计算物理》2001年第6期563-568,共6页Chinese Journal of Computational Physics

基　　金：国家自然科学基金 (10 0 0 12 0 8)资助项目

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 。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.

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 计算精度 反应堆 

分 类 号：TL329.2[核科学技术—核技术及应用]