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Statistical Modeling of Rarefied Gas Channel Flows

[+] Author Affiliations
Seckin Gokaltun, Michael C. Sukop, George S. Dulikravich

Florida International University, Miami, FL

Paper No. FEDSM2009-78523, pp. 519-527; 9 pages
doi:10.1115/FEDSM2009-78523
From:
  • ASME 2009 Fluids Engineering Division Summer Meeting
  • Volume 2: Fora
  • Vail, Colorado, USA, August 2–6, 2009
  • Conference Sponsors: Fluids Engineering Division
  • ISBN: 978-0-7918-4373-4 | eISBN: 978-0-7918-3855-6
  • Copyright © 2009 by ASME

abstract

Lattice Boltzmann method (LBM) and direct simulation Monte Carlo (DSMC) method are used for analysis of moderate Knudsen number phenomena. Simulation results are presented for pressure-driven isothermal rarefied channel flow at various pressure ratios. Analytical equations for non-linear pressure distribution and velocity profiles along the channel axis are used to verify the present LBM and DSMC results. We conclude that the LBM method can be used as an alternative model to DSMC simulations.

Copyright © 2009 by ASME

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