【摘要】 本程序可用来求解二维少群中子扩散方程,得到反应堆的有效增殖因子、中子通量分布以及功率分布。有限差分方程是用积分法导出的。内选代采用线松弛迭代,外迭代采用幂法,并用切比雪夫多项式加速。程序适用于X-Y、R-Z和R-θ三种几何系统及各种边界条件,能进行四群、三群和二群计算。慢化截面考虑了跳群。程序用FORTRAN语言写成。有VAX11/780和CYBER825两种版本。更多还原

【Abstract】 This code can be used to solve two-dimensional few-group neutron diffusion equations, to get effective multiplication factor of reactor, distribution of neutron-flux and power. The finit-difference equations got by integral method. The inner interation adopted line relaxation method. The outer iteration adopted power method and it was accelerated by Chebyshev polynomial. X-Y, R-Z, and R-theta geometries may be treated. Various boundary conditions are allowed. It can calculate with four groups, three groups and two groups. The code was written in FORTRAN Language. Now we have two versions; VAX 11/780 and CYBER 825 versions.更多还原