On the anomalous dynamics of capillary rise in porous media
The anomalous dynamics of capillary rise in a porous medium discovered experimentally more than a decade ago (Delker et al., Phys. Rev. Lett. 76 (1996) 2902) is described. The developed theory is based on considering the principal modes of motion of the menisci that collectively form the wetting fro...
| Asıl Yazarlar: | , |
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| Materyal Türü: | Journal article |
| Baskı/Yayın Bilgisi: |
2012
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| _version_ | 1826303016925396992 |
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| author | Shikhmurzaev, Y Sprittles, J |
| author_facet | Shikhmurzaev, Y Sprittles, J |
| author_sort | Shikhmurzaev, Y |
| collection | OXFORD |
| description | The anomalous dynamics of capillary rise in a porous medium discovered experimentally more than a decade ago (Delker et al., Phys. Rev. Lett. 76 (1996) 2902) is described. The developed theory is based on considering the principal modes of motion of the menisci that collectively form the wetting front on the Darcy scale. These modes, which include (i) dynamic wetting mode, (ii) threshold mode and (iii) interface de-pinning process, are incorporated into the boundary conditions for the bulk equations formulated in the regular framework of continuum mechanics of porous media, thus allowing one to consider a general case of three-dimensional flows. The developed theory makes it possible to describe all regimes observed in the experiment, with the time spanning more than four orders of magnitude, and highlights the dominant physical mechanisms at different stages of the process. |
| first_indexed | 2024-03-07T05:56:14Z |
| format | Journal article |
| id | oxford-uuid:ea9a392e-f981-404d-a2c0-c27026b65ec6 |
| institution | University of Oxford |
| last_indexed | 2024-03-07T05:56:14Z |
| publishDate | 2012 |
| record_format | dspace |
| spelling | oxford-uuid:ea9a392e-f981-404d-a2c0-c27026b65ec62022-03-27T11:03:24ZOn the anomalous dynamics of capillary rise in porous mediaJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:ea9a392e-f981-404d-a2c0-c27026b65ec6Mathematical Institute - ePrints2012Shikhmurzaev, YSprittles, JThe anomalous dynamics of capillary rise in a porous medium discovered experimentally more than a decade ago (Delker et al., Phys. Rev. Lett. 76 (1996) 2902) is described. The developed theory is based on considering the principal modes of motion of the menisci that collectively form the wetting front on the Darcy scale. These modes, which include (i) dynamic wetting mode, (ii) threshold mode and (iii) interface de-pinning process, are incorporated into the boundary conditions for the bulk equations formulated in the regular framework of continuum mechanics of porous media, thus allowing one to consider a general case of three-dimensional flows. The developed theory makes it possible to describe all regimes observed in the experiment, with the time spanning more than four orders of magnitude, and highlights the dominant physical mechanisms at different stages of the process. |
| spellingShingle | Shikhmurzaev, Y Sprittles, J On the anomalous dynamics of capillary rise in porous media |
| title | On the anomalous dynamics of capillary rise in porous media |
| title_full | On the anomalous dynamics of capillary rise in porous media |
| title_fullStr | On the anomalous dynamics of capillary rise in porous media |
| title_full_unstemmed | On the anomalous dynamics of capillary rise in porous media |
| title_short | On the anomalous dynamics of capillary rise in porous media |
| title_sort | on the anomalous dynamics of capillary rise in porous media |
| work_keys_str_mv | AT shikhmurzaevy ontheanomalousdynamicsofcapillaryriseinporousmedia AT sprittlesj ontheanomalousdynamicsofcapillaryriseinporousmedia |