电邮这篇文章 RADIATIVE TRANSFER: ASYMPTOTIC SOLUTION OF THE KINETIC EQUATION OF RADIATION PROPAGATION, N-th ORDER ASYMPTOTIC APPROXIMATION AND IMPROVED BOUNDARY CONDITIONS
- 作者: Serov S.1, Serova S.2
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隶属关系:
- Institute of Theoretical and Mathematical Physics
- St. Petersburg State University
- 期: 卷 100, 编号 12 (2023)
- 页面: 1332-1342
- 栏目: Articles
- URL: https://journals.rcsi.science/0004-6299/article/view/233478
- DOI: https://doi.org/10.31857/S0004629923120095
- EDN: https://elibrary.ru/DEKMSZ
- ID: 233478
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详细
In the article, new asymptotic approximation of the \(n\)-th order is obtained and proposed to be used in calculations of radiation propagation in optically thick media without scattering; the asymptotic approximation is simpler and more precise than the known diffusion approximation. It is shown, that for optically thick media the asymptotic solution of the kinetic equation of radiation propagation without scattering is asymptotic expansion of the exact integral solution of that kinetic equation. The rigorous derivation of the diffusion approximation equation is obtained. Improved boundary conditions, which are essential for practical application in calculations of radiation propagation, are derived.
作者简介
S. Serov
Institute of Theoretical and Mathematical Physics
编辑信件的主要联系方式.
Email: S.A.Serov@inbox.ru
Russia, Sarov
S. Serova
St. Petersburg State University
Email: S.A.Serov@inbox.ru
Russia, St. Petersburg
参考
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