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给出了有限差分方法计算临界尺寸和中子通量的误差分析,将临界情况下的精确解推广到了非临界情况。然后,将精确解与各种差分解作了比较,考察了计算格式与空间分点对计算结果的影响,对误差的规律性和误差原因作了分析。
The finite difference method is used to calculate the critical dimension and the neutron flux error analysis. The exact solution in the critical case is generalized to the non-critical case. Then, the exact solution is compared with various differential solutions. The influence of the calculation format and spatial points on the calculation results is investigated. The regularity of errors and the error causes are analyzed.