Email this article Rarefied gas flow into a vacuum from a plane long channel closed at one end
- Authors: Konopel’ko N.A.1, Shakhov E.M.2,3
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Affiliations:
- Moscow Institute of Physics and Technology (State University)
- Bauman Moscow State Technical University
- Federal Research Center “Informatics and Management” of the Russian Academy of Sciences
- Issue: Vol 51, No 4 (2016)
- Pages: 552-560
- Section: Article
- URL: https://journals.rcsi.science/0015-4628/article/view/155320
- DOI: https://doi.org/10.1134/S0015462816040153
- ID: 155320
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Abstract
The time-dependent problem of rarefied gas flow into a vacuum from a plane long channel closed at one end is solved on the basis of the kinetic S-model. The effect of diffuse molecular reflection from the channel walls on the flow velocity and the process of channel cavity vacuumization is studied as a function of the channel length and the extent of gas rarefaction under the condition that the wall temperature is maintained to be constant. The kinetic equation is solved numerically using a conservative finite-difference method of the second order of accuracy in spatial coordinates. The possibility of simplification of the problem for long times by means of reduction to the diffusion process is considered.
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About the authors
N. A. Konopel’ko
Moscow Institute of Physics and Technology (State University)
Author for correspondence.
Email: konopelko.na@mipt.ru
Russian Federation, Institutskii per. 9, Dolgoprudnyi, Moscow oblast, 141700
E. M. Shakhov
Bauman Moscow State Technical University; Federal Research Center “Informatics and Management” of the Russian Academy of Sciences
Email: konopelko.na@mipt.ru
Russian Federation, ul. 2-ya Baumanskaya, 5, Moscow, 105005; ul. Vavilova 44, korp. 2, Moscow, 119333
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