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An Investigation of a Mixed-Convection in a Rarefied Gas.
- Source :
-
AIP Conference Proceedings . 2016, Vol. 1786 Issue 1, p1-8. 8p. 1 Diagram, 1 Chart, 4 Graphs. - Publication Year :
- 2016
-
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. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 0094243X
- Volume :
- 1786
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- AIP Conference Proceedings
- Publication Type :
- Conference
- Accession number :
- 119558038
- Full Text :
- https://doi.org/10.1063/1.4967599