An Investigation of a Mixed-Convection in a Rarefied Gas

Kokou Sename Enyonam Dadzie, Chariton Christou

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Abstract

We investigate heat transfer in a rarefied gas in a lid-driven cavity flow initiated by instantaneously heating and cooling opposite walls for different flow regimes. Volume diffusion model is used as an extension to the standard Navier-Stokes-Fourier set for simulating the flows. Numerical simulations are presented and compared with standard Navier-Stokes-Fourier. For higher Knudsen numbers the volume diffusion model captures non-local equilibrium effects in corners of the cavity that are missed by the Navier-Stokes-Fourier model. It is generally observed that one can use volume diffusion correction to capture disequilibrium effects in high rarefaction regimes.
Original languageEnglish
Title of host publication30th International Symposium on Rarefied Gas Dynamics
PublisherAIP Publishing
ISBN (Print)9780735414488
DOIs
Publication statusPublished - 15 Nov 2016
Event30th International Symposium on Rarefied Gas Dynamics 2016 - Victoria, Canada
Duration: 10 Jul 201615 Jul 2016

Publication series

NameAIP Conference Proceedings
PublisherAIP Publishing
Number1
Volume1786
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference30th International Symposium on Rarefied Gas Dynamics 2016
CountryCanada
CityVictoria
Period10/07/1615/07/16

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