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 [T. Delker et al., Phys. Rev. Lett. 76, 2902 (1996)] is described. The developed theory is based on considering the principal modes of motion of the menisci that collectively form the wetting...
| Main Authors: | , |
|---|---|
| Format: | Journal article |
| Language: | English |
| Published: |
2012
|
| _version_ | 1797079068713156608 |
|---|---|
| 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 [T. Delker et al., Phys. Rev. Lett. 76, 2902 (1996)] 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 depinning 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 | 2024-03-07T00:40:23Z |
| format | Journal article |
| id | oxford-uuid:82d6058b-65df-4c9e-85c0-0f138054c822 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T00:40:23Z |
| publishDate | 2012 |
| record_format | dspace |
| spelling | oxford-uuid:82d6058b-65df-4c9e-85c0-0f138054c8222022-03-26T21:40:09ZAnomalous dynamics of capillary rise in porous media.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:82d6058b-65df-4c9e-85c0-0f138054c822EnglishSymplectic Elements at Oxford2012Shikhmurzaev, YSprittles, JThe anomalous dynamics of capillary rise in a porous medium discovered experimentally more than a decade ago [T. Delker et al., Phys. Rev. Lett. 76, 2902 (1996)] 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 depinning 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 Anomalous dynamics of capillary rise in porous media. |
| title | Anomalous dynamics of capillary rise in porous media. |
| title_full | Anomalous dynamics of capillary rise in porous media. |
| title_fullStr | Anomalous dynamics of capillary rise in porous media. |
| title_full_unstemmed | Anomalous dynamics of capillary rise in porous media. |
| title_short | Anomalous dynamics of capillary rise in porous media. |
| title_sort | anomalous dynamics of capillary rise in porous media |
| work_keys_str_mv | AT shikhmurzaevy anomalousdynamicsofcapillaryriseinporousmedia AT sprittlesj anomalousdynamicsofcapillaryriseinporousmedia |