Loading...
Please wait, while we are loading the content...
Similar Documents
Simulation of viscous fingering during miscible displacement in nonuniform porous media
| Content Provider | Semantic Scholar |
|---|---|
| Author | Moissis, David |
| Copyright Year | 1988 |
| Abstract | Numerical simulation is used to study the effect of different factors on unstable miscible displacement and to clarify the mechanisms of finger growth and interaction. The two-dimensional equations of miscible displacement in a rectangular slab are dedimensionalized and the factors that affect their solution are combined into dimensionless parameters. These parameters are the viscosity ratio, the aspect ratio (ratio of longitudinal to transverse dimension), Peclet numbers for molecular, longitudinal and transverse dispersion and the gravity number. To study the effect of the structure of the porous medium, simulations are performed on different random permeability fields, generated by a statistical method, so that they have a given coefficient of permeability variation and a given correlation length. The concentration equation is solved by an implicit finite element modified method of characteristics, which performs backward characteristic tracking. A mixed finite element method is used for the solution of the pressure |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://scholarship.rice.edu/bitstream/handle/1911/101645/TR88-09.pdf?isAllowed=y&sequence=1 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |