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首页> 外文会议>Asia Simulation Conference/International Conference on System Simulation and Scientific Computing >Evaluation on Effective Emissivity of a Surface with Homocentric V-grooves by Monte-Carlo method
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Evaluation on Effective Emissivity of a Surface with Homocentric V-grooves by Monte-Carlo method

机译：Monte-Carlo方法用同声V形沟的表面有效发射率评价

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摘要

The characteristics of a surface used for radiant sources in infrared imaging were investigated by Monte-Carlo method. The radiation of the surface was simulated, the position of a light point, the direction of a ray, the state that if the ray is absorbed or reflected were all regarded as random variables which were sampled by random number according to their probability distribution. The effective emissivity of the surface was evaluated statistically via tracing more than 20 million rays which involves setting up the ray equation, and coordinates transformation. The correctness of the method has been tested by comparing some results of Monte-Carlo simulation to those of precise method. The relationships between the accuracy of computation result and simulating model, sampling method, uniformity of pseudo-random number, and sampling number have been discussed. The results show that the surface is ideal for developing surface radiant sources.
机译：通过Monte-Carlo方法研究了用于红外成像中的辐射源的表面的特征。模拟表面的辐射，光点的位置，射线的方向，如果光线被吸收或反射的状态被认为是随机变量根据其概率分布通过随机数采样。通过追踪超过2000万射线来评估表面的有效发射率，涉及设置射线方程，并坐标转换。通过将Monte-Carlo模拟的一些结果与精确的方法的仿真结果进行比较来测试该方法的正确性。已经讨论了计算结果的准确性与模拟模型，采样方法，伪随机数的均匀性与采样数的关系。结果表明，该表面是显影表面辐射源的理想选择。

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