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Mixing Enhancement of Two Gases in a Microchannel Using DSMC

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Abstract:

Microgas flow analysis may not be performed accurately using the classical CFD methods because of encountering high Knudsen number regimes. Alternatively, the gas flow through micro-geometries can be investigated reliably using the direct simulation Monte Carlo (DSMC) method. Our concern in this paper is to use DSMC to study the mixing of two gases in a microchannel. The mixing process is assumed to be complete when the mass composition of each species deviates by no more than ±1% from its equilibrium composition. To enhance the mixing process, we focus on the effects of inlet-outlet pressure difference and the pressure ratios of the incoming CO and N2 streams on the mixing enhancement. The outcome of this study is suitably discussed in the result section.

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Periodical:

Applied Mechanics and Materials (Volume 307)

Pages:

166-169

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.307.166

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Online since:

February 2013

Authors:

Masoud Darbandi, Elyas Lakzian

Keywords:

DSMC Method, Knudsen Number, Mixing

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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