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Mixing enhancement of two gases in a microchannel using DSMC

Darbandi, M ; Sharif University of Technology | 2013

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  1. Type of Document: Article
  2. DOI: 10.4028/www.scientific.net/AMM.307.166
  3. Publisher: 2013
  4. Abstract:
  5. In high Knudsen number flow regimes microgas flow analysis may not be performed accurately using the classical CFD methods. 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 entering simultaneously into 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 two incoming CO and N2 streams on the mixing enhancement. The outcome of this study is suitably discussed in the results section
  6. Keywords:
  7. Knudsen number - mixing - DSMC method ; CFD method ; Direct simulation Monte Carlo method ; DSMC method ; Equilibrium compositions ; Flowthrough ; High knudsen number flows ; Mass composition ; Microgas flow ; Mixing enhancement ; Mixing process ; Pressure differences ; Pressure ratio ; Computational mechanics ; Computer simulation ; Microchannels ; Mixing
  8. Source: Applied Mechanics and Materials, Dubai ; Volume 307 , 2013 , Pages 166-169 ; 16609336 (ISSN) ; 9783037856598 (ISBN)
  9. URL: http://www.scientific.net/AMM.307.166