Knudsen diffusivity in random billiards: spectrum, geometry, and computation

We develop an analytical framework and numerical approach to obtain the coefficient of self-diffusivity for the transport of a rarefied gas in channels in the limit of large Knudsen number. This framework provides a method for determining the influence of channel surface microstructure on the value...

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Veröffentlicht in:	arXiv.org 2021-04
Hauptverfasser:	Chumley, Timothy, Feres, Renato, Garcia German, Luis Alberto
Format:	Artikel
Sprache:	eng
Schlagworte:	Accommodation coefficient Diffusivity Mathematics - Dynamical Systems Mathematics - Probability Microstructure Numerical methods Rarefied gases
Online-Zugang:	Volltext
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