A mean free path approach to the micro/nanochannel gas flows
Journal article
Authors | Xie, Jianfei |
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Abstract | We investigate the gas flows near to solid surfaces in terms of the local spatial variation in the molecular mean free path (MFP). Molecular dynamics (MD) is the appropriate scientific tool for obtaining molecularly-accurate dynamic information in micro and nano-scale gas flows, and has been used to evaluate the molecular mean free path of gases. In the calibration procedure, the viscosity of a gas in the homogeneous case can be recovered in our MD simulations and reach good agreement with the theoretical prediction and data from NIST. In surface-bounded gas flows, if the collisions between gas molecules and walls are counted, a spatially-varying mean free path is presented, |
Keywords | Rarefied gas dynamics, mean free path, molecular dynamics |
Year | 2020 |
Journal | Advances in Aerodynamics |
Publisher | Springer Nature |
ISSN | 2524-6992 |
Digital Object Identifier (DOI) | https://doi.org/10.1186/s42774-020-00035-w |
Web address (URL) | http://hdl.handle.net/10545/624793 |
hdl:10545/624793 | |
Publication dates | 07 May 2020 |
Publication process dates | |
Deposited | 07 May 2020, 13:01 |
Accepted | 15 Apr 2020 |
Contributors | University of Derby |
File | File Access Level Open |
File | File Access Level Open |
https://repository.derby.ac.uk/item/93zz1/a-mean-free-path-approach-to-the-micro-nanochannel-gas-flows
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