摘要
讨论辐射输运菱形差分SN方程的源迭代加速方法,在一维情形下给出与输运算子离散相容的线性多频灰体加速计算格式.数值算例表明该加速算法是健壮有效的.
A consistent linear multifrequency-grey acceleration scheme is developed to accelerate the iterative convergence speed of diamonddifferenced multigroup radiative transfer equations. A difference scheme of acceleration equation is obtained directly by applying discrete P1 approximation to differenced SN equations. Numerical examples show that the method is effective and robust.
出处
《计算物理》
CSCD
北大核心
2008年第1期1-6,共6页
Chinese Journal of Computational Physics
基金
国家863高技术惯性约束聚变主题
国家重点基础研究项目(2005CB321703)
国家自然科学基金(10476002)
计算物理实验室基金资助项目
关键词
辐射输运
扩散综合加速
菱形差分SN方程
线性多频灰体加速
radiative transfer
diffusion-synthetic acceleration
diamond -differenced discrete-ordinates equations
linear multifrequencygrey acceleration
