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本文将区域分解算法和蒙特卡罗法相结合，求坦克温度场和红外辐射出射度．采用蒙特卡罗法计算辐射传递系数，可以考虑界面的复杂辐射特性，如：镜反射、各向异性发射、各向异性反射等；可直接考虑界面的复杂几何特性，如:相互遮挡、太阳入射方向上的投影面积等．引入辐射传递系数，分离了计算的难点，使得在时间域（计算步骤）上能把整个问题分解为若干个子问题并行处理、在空间域（计算区域）上将坦克分解为若干个子区域，缩小计算规模，并可使用多个处理器并行计算；同时减轻了蒙特卡罗法编程的难度，缩短了计算时间．
This article combines the regional decomposition algorithm with Monte Carlo method to find the temperature field of the tank and the infrared radiation emission degree. Monte Carlo method to calculate the radiation transfer coefficient, you can consider the interface of the complex radiation characteristics, such as: mirror reflection, anisotropic emission, anisotropic reflection; can directly consider the complex interface geometry, such as: mutual occlusion, solar incident The direction of the projection area and so on. The radiation transfer coefficient is introduced to separate the computational difficulties, so that the entire problem can be decomposed into several sub-problems in the time domain (computation step), and the tank can be decomposed into several sub-regions in the spatial domain (computation region) Scale, and can use multiple processors parallel computing; while reducing the difficulty of Monte Carlo programming and shorten the calculation time.