| Original Articles |
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Deterministic Displacement and Scaling Structure of Viscous
Fingering with Dispersion Effect in Random Porous Media |
| TIAN Ju-Ping1;YAO Kai-Lun2,3,4 |
| 1Department of Physics, Wuhan Institute of Science and Technology, Wuhan 430073
2Department of Physics, Huazhong University of Science and Technology, Wuhan 430074
3CCAST (World Laboratory), P.O.Box 8730, Beijing 100080
4International Center for Material Physics, Chinese Academy of Sciences, Shenyang 110015 |
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| Cite this article: |
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TIAN Ju-Ping, YAO Kai-Lun 2001 Chin. Phys. Lett. 18 373-375 |
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Abstract A model of random porous media degradation via several fluid displacing, freezing and thawing cycles is investigated. The fluid transport is based on the deterministic method with dispersion effect. The research shows that the topology and the geometry of the porous media have a strong effect on displacement processes. The distribution of throat size N(r) after displacement but before freezing damage shows that the major change, after successive cycles, happens at throat radius r > 0.9. The distribution of velocities normal to the interface of viscous fingering in percolation cluster is also studied. When iterations n≥10, the scaling function distribution is very sharp.
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| Keywords:
47.55.Mh
68.70.+w
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Published: 01 March 2001
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| PACS: |
47.55.Mh
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68.70.+w
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(Whiskers and dendrites (growth, structure, and nonelectronic properties))
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