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首页> 外文期刊>Journal of Heat Transfer >Modeling of Spectral Properties and the Scattering Phase Function for Lightweight Heat Protection Spacecraft Materials
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Modeling of Spectral Properties and the Scattering Phase Function for Lightweight Heat Protection Spacecraft Materials

机译：轻型热保护航天器材料的光谱特性和散射相函数建模

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This work gives a brief description of the statistical model that takes into account when calculating the physical, in particular, the optical properties of some ultraporous nonme-tallic high-temperature materials, the real regularities of the material structure, and the physical properties of substances constituting the material. For the spectral part of the model, some tests are presented, confirming its adequacy. The simulation of the spectra and the scattering of monochromatic radiation pattern by using the representative elements of the model and the material as a whole are carried out. It is found that despite the fact that the scattering pattern based on the use of representative elements of a material can be approximated by the classical distributions, this is not true for the material as a whole. Calculations of the angular scattering probability density of the materials are carried out, and the approximations of obtained distributions that extend the class of modeling scattering phase functions (SPF) are proposed.
机译：这项工作简要介绍了统计模型，该统计模型在计算某些超多孔非金属高温材料的物理特性（尤其是光学特性），材料结构的实际规律性以及物质的物理特性时要考虑在内构成材料。对于模型的光谱部分，进行了一些测试，证实了其适当性。通过使用模型的代表元素和整个材料对光谱和单色辐射图的散射进行仿真。已经发现，尽管事实上可以通过经典分布来近似基于材料的代表性元素的使用的散射图案，但是对于整个材料而言并非如此。对材料的角散射概率密度进行了计算，并提出了获得的分布的近似值，这些分布扩展了模型散射相位函数（SPF）的类别。

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