All

Mechanics in Engineering ›› 2009, Vol. 31 ›› Issue (2): 31-34.doi: 10.6052/1000-0879-2008-071

• Application study • Previous Articles     Next Articles

SINGLE COMPONENT MULTIPHASE DISPLACEMENT WITH LATTICE BOLTZMANN MODELS

  

  • Received:2008-02-01 Revised:1900-01-01 Online:2009-04-08 Published:2009-04-08

Abstract: By introducing fluid-fluid and fluid-solid surfaces interactions, the process of the non-wetting vapor phase displacing complete-wetting liquid phase in two-dimensional pore-networks is simulated based on the Shan-Chen single component multiphase model of lattice Boltzmann method. The fluid interfaces form naturally and the displacement is of capillary fingering. With the capillary number increasing, the viscous force becomes more and more dominating and the sizes of the pores invaded by vapor decrease, leading to rich behaviors of the displacement. With the imposition of the gravity, the gravity plays a stabilizing role on the vapor invasion front.

Key words: lattice Boltzmann, multiphase, displacement