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在本文提出的堆芯燃料管理计算模型中,快群参数用B_1近似计算;热群截面的计算采用首次飞行碰撞几率法;而堆芯临界、燃耗计算是建立在粗网展开法的基础上。与粗网计算相配合的节块嵌入计算,能给出燃料组件内的精细通量、功率分布。
In the calculation model of the core fuel management proposed in this paper, fast group parameters are approximated by B_1; the first flight collision probability method is used to calculate the thermal group cross section; and the core critical and fuel consumption calculation is based on the coarse mesh expansion method . In conjunction with the coarse mesh calculation, the knuckle block embedding calculation gives the fine flux and power distribution within the fuel assembly.