TY  - JOUR
T1  - NAPL Dissolution in a Three Stratified Porous Media: Large Scale Effectives Properties
AU - Bouka, U.F. AU - Nganga, D. AU - Mabiala, B. AU - Tathy, C. 
JO  - Journal of Engineering and Applied Sciences
VL  - 5
IS  - 6
SP  - 435
EP  - 446
PY  - 2010
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2010.435.446
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2010.435.446
KW  - NAPL dissolution
KW  -porous media
KW  -heterogeneity
KW  -mass exchange coefficient
KW  -modeling
KW  -Darcy scale
AB  - In this study, we derived the effective mass-transfer coefficient between two-phase flow in a three stratified porous medium, one (water) is flowing and the other (NAPL) is trapped. Traditional volume averaging method was used to calculate the large scale effective properties equation describing NAPL dissolution in one-dimensional stratified systems. One limiting case has been investigated corresponding to local equilibrium dissolution with great mass exchange coefficients. It is interesting to note that this case results in a large-scale non-equilibrium dissolution model. The theoretical developments allow predicting the large-scale effective properties from the Darcy scale characteristics in unit-cell. Darcy scale direct simulations were compared favorably to large-scale predictions obtained from the theoretical models.
ER  -