Gas transport in unsaturated porous media: the adequacy of Fick's law
Reviews of Geophysics
By: D.C. Thorstenson and D.W. Pollock
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Abstract
The increasing use of natural unsaturated zones as repositories for landfills and disposal sites for hazardous wastes (chemical and radioactive) requires a greater understanding of transport processes in the unsaturated zone. For volatile constituents an important potential transport mechanism is gaseous diffusion. Diffusion, however, cannot be treated as an independent isolated transport mechanism. A complete understanding of multicomponent gas transport in porous media (unsaturated zones) requires a knowledge of Knudsen transport, the molecular and nonequimolar components of diffusive flux, and viscous (pressure driven) flux. This review presents a brief discussion of the underlying principles and interrelationships among each of the above flux mechanisms. -from Authors
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Gas transport in unsaturated porous media: the adequacy of Fick's law |
| Series title | Reviews of Geophysics |
| Volume | 27 |
| Issue | 1 |
| Year Published | 1989 |
| Language | English |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Reviews of Geophysics |
| First page | 61 |
| Last page | 78 |
| Google Analytic Metrics | Metrics page |