Numerical Study of Dispersive Mass Transport in Homogeneous and Heterogeneous Porous Media

2020 ◽  
pp. 104-121
Author(s):  
Hector Rusinque ◽  
Eugenia Barthelmie ◽  
Gunther Brenner
Keyword(s):  
Porous Media ◽  
Mass Transport ◽  
Numerical Study ◽  
Heterogeneous Porous Media

Macroscopic Modeling of Turbulent Mass Transport in Heterogeneous Porous Media

2004 ◽  
Author(s):  
Maximilian S. Mesquita ◽  
Marcelo J. S. de Lemos
Keyword(s):  
Porous Media ◽  
Mass Transport ◽  
Transport Model ◽  
Control Volume ◽  
Fluid Phase ◽  
Heterogeneous Porous Media ◽  
Macroscopic Model ◽  
Simple Method ◽  
Macroscopic Modeling ◽  
Flow Equations

In this work, results for a macroscopic mass transport model are presented for a parallel plate channel filled with a fluid saturated heterogeneous porous medium. The numerical methodology herein employed is based on the control volume approach. Turbulence is assumed to exist within the fluid phase. High and low Reynolds k-e models were used to model such non-linear effects. The flow equations at the pore-scale were numerically solved using the SIMPLE method applied to a non-orthogonal boundary-fitted coordinate system. Integrated mass fraction results were compiled leading to correlations for the mass dispersion coefficients in the x and y directions. Application of the macroscopic model using the proposed correlations showed the role of dispersion mechanism in the overall transport in porous media.

Numerical Study of Density-Driven Convection in Laminated Heterogeneous Porous Media

2020 ◽  
Vol 36 (5) ◽  
pp. 665-673 ◽  
Author(s):  
Qian Li ◽  
Wei Hua Cai ◽  
Bing Xi Li ◽  
Ching-Yao Chen
Keyword(s):  
Porous Media ◽  
Numerical Study ◽  
Heterogeneous Porous Media ◽  
Convection Flow ◽  
Order Of Accuracy ◽  
Compact Finite Difference Scheme ◽  
Pseudo Spectral Method ◽  
Laminated Structures ◽  
Pseudo Spectral ◽  
Permeability Field

ABSTRACTIn the present study, we use direct numerical simulation to investigate the density-driven convection in a two-dimensional anisotropic heterogeneous porous media associated with significant laminated formation. At first, the heterogeneous porous media are randomly generated to represent laminated structure, in which the horizontal correlation length of permeability field is much longer than the vertical counterpart. Then, a highly accurate pseudo-spectral method and compact finite difference scheme with higher order of accuracy are employed to numerically reproduce the convection flow in the laminated porous media. The results show that the laminated structures restrict interactions among the downward plumes of heavier fluid. The plumes tend to descend more straightly in a laminated porous medium associated with a slower growth rate. As a result, the laminated distribution of permeability is considered having an inhibiting effect on the convection flow.

scholarly journals MASS TRANSPORT IN THE UNSATURATED-HETEROGENEOUS POROUS MEDIA

2003 ◽  
Vol 47 ◽  
pp. 337-342
Author(s):  
Kei NAKAGAWA ◽  
Masahide IWATA ◽  
Jiro CHIKUSHI ◽  
Kazuro MOMII
Keyword(s):  
Porous Media ◽  
Mass Transport ◽  
Heterogeneous Porous Media

Density-dependent dispersion in heterogeneous porous media Part I: A numerical study

2007 ◽  
Vol 30 (12) ◽  
pp. 2467-2480 ◽  
Author(s):  
Anke Jannie Landman ◽  
K. Johannsen ◽  
Ruud Schotting
Keyword(s):  
Porous Media ◽  
Numerical Study ◽  
Heterogeneous Porous Media ◽  
Density Dependent
Sign in / Sign up

Export Citation Format

Share Document