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 nonmetallic 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.
Modeling of Spectral Properties and the Scattering Phase Function for Lightweight Heat Protection Spacecraft Materials
Contributed by the Heat Transfer Division of ASME for publication in the JOURNAL OF HEAT TRANSFER. Manuscript received March 28, 2016; final manuscript received September 20, 2016; published online November 16, 2016. Editor: Dr. Portonovo S. Ayyaswamy.
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Cherepanov, V. V., and Alifanov, O. M. (November 16, 2016). "Modeling of Spectral Properties and the Scattering Phase Function for Lightweight Heat Protection Spacecraft Materials." ASME. J. Heat Transfer. March 2017; 139(3): 032701. https://doi.org/10.1115/1.4034814
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