Computational study of a rarefied gas flow through a long circular pipe into vacuum |
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| Authors: | V.A. Titarev E.M. Shakhov |
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| Affiliation: | a Dorodnicyn Computing Centre of Russian Academy of Sciences, Moscow 119333, Russia
b Bauman Moscow State Technical University, Moscow 105005, Russia |
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| Abstract: | The paper presents an analysis of the non-linear rarefied gas flow through a circular pipe into vacuum. The main attention is given to the case of the large length to radius ratio. The problem is studied on the basis of the numerical solution of the S-model kinetic equation. Results are compared with the available DSMC data for short tubes as well as with the asymptotic solution corresponding to the infinitely long pipe. |
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| Keywords: | Vacuum Kinetic equations S-Model Unstructured Micro Rarefied Implicit Non-linear flow Circular pipes |
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