| Autor: |
Kratzer, Matthew M., Bhatia, Suresh K., Klimenko, Alexander Y. |
| Předmět: |
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| Zdroj: |
Journal of Applied Physics; 6/21/2024, Vol. 135 Issue 23, p1-8, 8p |
| Abstrakt: |
We outline a surface scattering kernel for rarefied gas flows through ideally ordered nanomaterials, such as high aspect ratio carbon nanotubes. The derived model allows for a comparison of the tangential momentum accommodation coefficient, and, hence, the total effective friction, for different species of gases as a function of the particle diameter. This surface kernel is incorporated with a Fokker–Planck model as an approximation to transport of a rarefied gas through ideally ordered carbon nanotubes. The results of this analysis predict that H 2 experiences higher friction in such systems in comparison with larger molecules such as C H 4 . The results are proposed as a potential explanation of the reduced gas transport of hydrogen gas in nanoporous systems. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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