论文部分内容阅读
将中子伴随通量方程变换处理以后，利用格林函数节块法的原理求解中子伴随通量，以此代替过去采用最多的细网有限差分法。对ＴＷＩＧＬ二维模型进行了校算，并与有限差分法ＣＩＴＡＴＩＯＮ程序结果进行了比较。两种方法的计算结果十分吻合，这表明采用粗网格的格林函数节块法求解中子伴随通量是可行的，而且这种粗网格的方法具有空间网格大，计算精度高，计算速度快的特点，因而具有较高的计算效率。
After transforming the neutron flux equation, the principle of Green’s function nodal method is used to solve the neutron flux, which replaces the fine mesh finite difference method used in the past. The TWIGL two-dimensional model was calibrated and compared with the Finite Difference Method CITATION program. The results of the two methods agree well with each other, which shows that it is feasible to use the Green’s function nodal method of coarse grid to solve the neutron fluxes. Moreover, the coarse mesh method has the advantages of large space grid, high computational accuracy Fast speed, and therefore has a high computational efficiency.