Minimized Capillary End Effect During CO2 Displacement in 2-D Micromodel by Manipulating Capillary Pressure at the Outlet Boundary in Lattice Boltzmann Method

2018 ◽  
Vol 54 (2) ◽  
pp. 895-915 ◽  
Author(s):  
Dong Hun Kang ◽  
Tae Sup Yun
Keyword(s):  
Lattice Boltzmann Method ◽  
Capillary Pressure ◽  
Lattice Boltzmann ◽  
End Effect ◽  
Boltzmann Method ◽  
Capillary End Effect

scholarly journals Modeling multiphase flow with a hybrid model based on the Pore-network and the lattice Boltzmann method

2020 ◽  
Vol 195 ◽  
pp. 02009
Author(s):  
Eduard Puig Montellà ◽  
Chao Yuan ◽  
Bruno Chareyre ◽  
Antonio Gens
Keyword(s):  
Lattice Boltzmann Method ◽  
Capillary Pressure ◽  
Hybrid Model ◽  
Lattice Boltzmann ◽  
Computation Time ◽  
Pore Network ◽  
Two Phase ◽  
Excellent Description ◽  
Flow Through ◽  
Boltzmann Method

Lattice Boltzmann method (LBM) simulations provide an excellent description of two-phase flow through porous media. However, such simulations require a significant computation time. In order to optimize the computation resources, we propose a hybrid model that combines the efficiency of the pore-network approach and the accuracy of the lattice Boltzmann method at the pore scale. The hybrid model is based on the decomposition of the granular assembly into small subsets, in which LBM simulations are performed to determine the main hydrostatic properties (entry capillary pressure, capillary pressure - liquid content relationship and liquid morphology for each pore throat). A primary drainage of a random packing of spheres is presented and contrasted to the results of the same problem fully resolved by the LBM. Liquid morphology and invasion paths are correctly reproduced by the hybrid method.

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