한국전산유체공학회:학술대회논문집

한국전산유체공학회 (Korean Society of Computational Fluids Engineering)
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Unstable Interface Phenomena in a Micro Channel

  • Inamuro T. (Department of Chemical Engineering, Kyoto University) ;
  • Kobayashi K. (Department of Chemical Engineering, Kyoto University) ;
  • Yamaoka Y. (Department of Chemical Engineering, Kyoto University) ;
  • Ogino F. (Department of Chemical Engineering, Kyoto University)
  • 발행 : 2003.10.01
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초록

The behavior of viscous fingerings caused by an external force is investigated by using a two­phase lattice Boltzmann method. The effects of the modified capillary number, the viscosity contrast, and the modified Darcy-Rayleigh number on the instability of interfaces are found. The calculated wave numbers are in good agreement with the theoretical ones in the range of wave numbers smaller than 10, but the calculated ones tend to become smaller than the theoretical ones in higher wave numbers.

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