Evaporation Boundary Conditions for the R13 Equations of Rarefied Gas Dynamics

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dc.contributor.authorStruchtrup, Henning
dc.contributor.authorBeckmann, Alexander
dc.contributor.authorRana, Anirudh Singh
dc.contributor.authorFrezzotti, Aldo
dc.date.accessioned2017-09-13T16:23:56Z
dc.date.available2017-09-13T16:23:56Z
dc.date.copyright2017en_US
dc.date.issued2017
dc.description.abstractThe regularized 13 moment equations (R13) are a macroscopic model for the description of rarefied gas flows in the transition regime. The equations have been shown to give meaningful results for Knudsen numbers up to about 0.5. Here, their range of applicability is extended by deriving and testing boundary conditions for evaporating and condensing interfaces. The macroscopic interface conditions are derived from the microscopic interface conditions of kinetic theory. Tests include evaporation into a half-space, and evaporation/condensation of a vapor between two liquid surfaces of different temperatures. Comparison indicates that overall the R13 equations agree better with microscopic solutions than classical hydrodynamics.en_US
dc.description.reviewstatusRevieweden_US
dc.description.scholarlevelFacultyen_US
dc.description.sponsorshipNatural Sciences and Engineering Research Council (NSERC) EPSRC Programme Grant EP/N016602/1 National Group of Mathematical Physics (INDAM-GNFM).en_US
dc.identifier.citationHenning Struchtrup, Alexander Beckmann, Anirudh Singh Rana, and Aldo Frezzotti. Evaporation boundary conditions for the R13 equations of rarefied gas dynamics. Physics of Fluids 29 092004 (2017).en_US
dc.identifier.urihttp://dx.doi.org/10.1063/1.4989570
dc.identifier.urihttp://hdl.handle.net/1828/8563
dc.language.isoenen_US
dc.publisherPhysics of Fluidsen_US
dc.rightsAttribution-NonCommercial-NoDerivs 2.5 Canada*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/2.5/ca/*
dc.titleEvaporation Boundary Conditions for the R13 Equations of Rarefied Gas Dynamicsen_US
dc.typeArticleen_US

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