| Autor: |
T. R. Lineham, D. Gilling, K.A. Cliffe, N.L. Jefferies |
| Rok vydání: |
1993 |
| Předmět: |
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| Zdroj: |
Journal of Contaminant Hydrology. 13:73-90 |
| ISSN: |
0169-7722 |
| Popis: |
A series of laboratory tracer migration experiments in a single rock fracture have been performed, and the breakthrough curves have been interpreted using mathematical modelling. Discrepancies were observed between the experimental data and the predictions made using a simple advection-dispersion model. The potential reasons for these discrepancies have been investigated by applying more complex models: one model incorporates channelling of flow within the fracture, the other couples dispersion and advection in the fracture with rock-matrix diffusion. It is concluded that chanelling of flow can adequately explain the observed spreading behaviour; rock-matrix diffusion is not a significant mechanism influencing transport in these experiments. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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