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提出了利用微扰正向扩散计算方法的思想 ,建立了全堆芯格林函数方法 (CGFM )中的格林函数库 .利用格林函数库取消了内迭代 ,从而大大提高了中子扩散方程的求解速度 .针对我国秦山核电厂的外 内和低泄漏两种布料方案进行了校核计算 .结果表明 ,计算精度与格林函数节块方法(NGFM )相当 ,计算速度提高近 9倍 .
The idea of using the method of calculation for the forward diffusion of perturbation is proposed and a Green function library in CGFM is established. The inner iteration is canceled by using Green’s function library, which greatly improves the solution speed of neutron diffusion equation The calculation of two kinds of fabric schemes of outer and inner leakage of Qinshan NPP in China is carried out.The results show that the calculation accuracy is comparable to NGFM and the computational speed is increased by nearly 9 times.