Bi-velocity gas dynamics of a micro lid-driven cavity heat transfer subject to forced-convection

Kokou Sename Enyonam Dadzie, Chariton Christou

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6 Citations (Scopus)
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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 corrections to capture disequilibrium effects in high rarefaction regimes.
Original languageEnglish
Pages (from-to)175-181
Number of pages7
JournalInternational Communications in Heat and Mass Transfer
Volume78
Early online date29 Sep 2016
DOIs
Publication statusPublished - Nov 2016

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