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arXiv · 2309.12296

A rigorous model reduction for the anisotropic-scattering transport process

Yuan Hu·Chang Liu·Huayun Shen
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Abstract

In this letter, we propose a reduced-order model to bridge the particle transport mechanics and the macroscopic fluid dynamics in the highly scattered regime. A rigorous mathematical derivation and a concise physical interpretation are presented for an anisotropic-scattering transport process with arbitrary order of scattering kernel. The prediction of the theoretical model perfectly agrees with the numerical experiments. A clear picture of the diffusion physics is revealed for the neutral particle transport in the asymptotic optically thick regime.

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Yuan Hu, Chang Liu, Huayun Shen. 2023-09-21. A rigorous model reduction for the anisotropic-scattering transport process. https://arxiv.org/abs/2309.12296

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