【摘要】 提出了筛选法模拟辐射能束随机发射位置的新算法 ,解决了模拟 G型辐冷器抛物面屏这种立体曲面辐射能束随机发射位置的难题 ,并以切平面为发射基础 ,推导出辐射能束随机发射方向的求解算法。通过上述算法 ,模拟了辐射过程 ,计算了相应的耦合因子 ,并对结果进行了误差分析。计算结果表明 ,基于新算法的蒙特卡洛法准确模拟了 G型辐冷器辐射过程 ,计算精度高、速度快更多还原

【Abstract】 During simulating radiation and calculating exchange factors of the parabolic reflector of the G-type radiant cooler, this research used the filtering algorithm to confirm the location of energy packets on the parabolic reflector and developed the direction of energy packets based on the tangent plane. Based on new algorithms, radiation and exchange factors of the parabolic reflector to other surfaces are simulated and calculated by the Monte Care method, and the results are analyzed. The results show that new algorithms can guarantee the precise of the simulation and calculation of the Monte Carlo method and the results become more accurate as more packets are included.更多还原