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本文中分别利用梯形区域近似法和矩形区域近似法计算了锥柱形黑体空腔的有效发射率分布,并将两种方法进行了比较。结果表明,由于矩形区域近似法计算中避开了复杂的奇点处理问题,因而在计算精度相同的情况下,使其计算程序简化,占机内存容量小。文中还利用矩形区域近似法计算了考虑环境辐射影响下的锥柱形腔体的有效发射率分布。
In this paper, the effective emissivity distribution of the cone-shaped blackbody cavity is calculated by using the trapezoidal region approximation method and the rectangular region approximation method respectively, and the two methods are compared. The results show that due to the complicated problem of singularities is avoided in the calculation of rectangle region approximation, the calculation procedure is simplified and the memory capacity of the machine is small when the calculation accuracy is the same. In this paper, the rectangular eigenvalue approximation is also used to calculate the effective emissivity distribution of cone-shaped cavity under the influence of environmental radiation.