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dc.contributor.authorXie, Jianfei
dc.date.accessioned2019-10-03T14:18:24Z
dc.date.available2019-10-03T14:18:24Z
dc.date.issued2019-08-05
dc.identifier.citationXie, J., Gibelli, L., Borg., M. K., Henrich, O., Lockerby,. D. A., and Reese, J., M. (2019) ‘Variation of molecular mean free path in confined geometries’. 31st International Symposium on Rarefied Gas Dynamics: RGD31. Glasgow, United Kingdom, 23-27 July, pp. 1-8. DOI: 10.1063/1.5119594.en_US
dc.identifier.isbn9780735418745
dc.identifier.doi10.1063/1.5119594.
dc.identifier.urihttp://hdl.handle.net/10545/624171
dc.description.abstractThis paper aims to settle disputes in the literature about the spatial variation of the molecular mean free path (MFP) in confined geometries. The MFP of a gas is determined by using both molecular dynamics (MD) and the direct simulation Monte Carlo (DSMC) technique. In spatially-homogeneous cases, the numerical results exactly recover the kinetic theory predictions of a constant MFP. However, in microchannels, the MFP is found to vary near to the bounding walls and reduce at the surfaces to half of its bulk value as long as collisions between gas molecules and wall atoms are taken into account in the calculation of the MFP.en_US
dc.description.sponsorshipUK’s Engineering and Physical Sciences Research Council (EPSRC) via Grant Nos. EP/N016602/1 and EP/R007438/1 National Natural Science Foundation of China (Grant No. 51506110) EPSRC Early Career Research Software Engineer Fellowship Scheme (Grant No. EP/N019180/2).en_US
dc.language.isoenen_US
dc.publisherAIP Publishingen_US
dc.relation.urlhttps://aip.scitation.org/doi/abs/10.1063/1.5119594en_US
dc.subjectRarefied Gas Dynamicsen_US
dc.subjectspatial variationen_US
dc.subjectconfined geometriesen_US
dc.titleVariation of molecular mean free path in confined geometriesen_US
dc.typeMeetings and Proceedingsen_US
dc.contributor.departmentUniversity of Edinburghen_US
dc.identifier.journalAIP Conference Proceedingsen_US
dcterms.dateAccepted2019-03
dc.author.detail786457en_US


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