Pressure-driven Nitrogen Flow in Divergent Microchannels with Isothermal Walls
Amin Ebrahimi,
Vahid Shahabi,
Ehsan Roohi
Abstract:Gas flow and heat transfer in confined geometries at micro and nano scales differ considerably from those at macro-scales, mainly due to nonequilibrium effects such as velocity slip and temperature jump. The nonequilibrium effects enhance with a decrease in the characteristic length-scale of the fluid flow or the gas density, leading to the failure of the standard Navier-Stokes-Fourier (NSF) equations in predicting thermal and fluid flow fields. The direct simulation Monte-Carlo (DSMC) method is employed in th… Show more
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