蒙特卡洛法在火焰热辐射计算中的应用

The application of Monte Carlo method in the flame radiation

讨论了蒙特卡洛法在火焰热辐射通量计算中的应用，将该方法计算结果与理论计算值和试验值作比较。通过比较发现，在燃烧稳定阶段该方法计算结果与理论计算结果的相对误差为15．7％～28．7％；由于火焰的振荡性及外界风流的影响和仪器本身灵敏度的差异，导致该方法与试验值在稳定燃烧阶段的差异，但二者在该阶段的平均值分别为448．99．8W／m^2和381．136W／m^2，相对误差为17．805％。

It is important to discuss the application of Monte Carlo method in the flame radiation. In order to prove the correctness of the method, comparing the method with the theoretic method and the experimental results. From the compare, finding that in the phase of combustion the relative error between Monte Carlo method and theoretic method is 15.7%-28.7% ;because of the surge of the flame, the effect of wind and the difference of the instruments, the method and the experimental results are different. The average results of Monte Carlo method and the experiment are 448. 998 W/m^2 and 381. 136 W/m^2,separately; elative error of them is 17. 805%.