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The European Physical Journal Special Topics

, Volume 171, Issue 1, pp 123–127 | Cite as

Numerical simulations of gas-liquid two-phase flows in a micro porous structure

  • J. Tomiyasu
  • T. InamuroEmail author
Article

Abstract

The lattice Boltzmann method for two-phase fluid flows is applied to the simulations of gas-liquid two-phase flows in a micro porous structure for various capillary numbers at low Reynolds numbers. The behaviors of the gas-liquid interface and the velocities of the two-phase fluid in the structure are simulated, and the permeability of gas and liquid through the structure are estimated from the calculated results. By changing the void fraction, the contact angle of the interface on walls, and the surface tension, the effect of these properties on the behaviors and the permeability of the two-phase flows in the micro porous structure is investigated. It is found that the permeability of liquid flows depends on the contact angle and it increases for hydrophobic walls. It is also seen that liquid flows are choked in pores for large void fractions and low capillary numbers.

Keywords

Reynolds Number Contact Angle European Physical Journal Special Topic Void Fraction Capillary Number 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© EDP Sciences and Springer 2009

Authors and Affiliations

  1. 1.Department of Aeronautics and AstronauticsKyoto UniversityKyotoJapan
  2. 2.Department of Aeronautics and Astronauticsand Advanced Research Institute of Fluid Science and Engineering, Kyoto UniversityKyotoJapan

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