Lateral instability in normal viscous fingers.
We study a low-amplitude, long-wavelength lateral instability of the Saffman-Taylor finger by means of a phase-field model. We observe such an instability in two situations in which small dynamic perturbations are overimposed to a constant pressure drop. We first study the case in which the perturba...
| Päätekijät: | , , , |
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| Aineistotyyppi: | Journal article |
| Kieli: | English |
| Julkaistu: |
2005
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| _version_ | 1826286818669101056 |
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| author | Ledesma-Aguilar, R Quevedo-Reyes, M Corvera Poiré, E Hernández-Machado, A |
| author_facet | Ledesma-Aguilar, R Quevedo-Reyes, M Corvera Poiré, E Hernández-Machado, A |
| author_sort | Ledesma-Aguilar, R |
| collection | OXFORD |
| description | We study a low-amplitude, long-wavelength lateral instability of the Saffman-Taylor finger by means of a phase-field model. We observe such an instability in two situations in which small dynamic perturbations are overimposed to a constant pressure drop. We first study the case in which the perturbation consists of a single oscillatory mode and then a case in which the perturbation consists of temporal noise. In both cases the instability undergoes a process of selection. |
| first_indexed | 2024-03-07T01:49:22Z |
| format | Journal article |
| id | oxford-uuid:9989bca8-f9cf-4641-b42c-5e22cf62a709 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T01:49:22Z |
| publishDate | 2005 |
| record_format | dspace |
| spelling | oxford-uuid:9989bca8-f9cf-4641-b42c-5e22cf62a7092022-03-27T00:15:04ZLateral instability in normal viscous fingers.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:9989bca8-f9cf-4641-b42c-5e22cf62a709EnglishSymplectic Elements at Oxford2005Ledesma-Aguilar, RQuevedo-Reyes, MCorvera Poiré, EHernández-Machado, AWe study a low-amplitude, long-wavelength lateral instability of the Saffman-Taylor finger by means of a phase-field model. We observe such an instability in two situations in which small dynamic perturbations are overimposed to a constant pressure drop. We first study the case in which the perturbation consists of a single oscillatory mode and then a case in which the perturbation consists of temporal noise. In both cases the instability undergoes a process of selection. |
| spellingShingle | Ledesma-Aguilar, R Quevedo-Reyes, M Corvera Poiré, E Hernández-Machado, A Lateral instability in normal viscous fingers. |
| title | Lateral instability in normal viscous fingers. |
| title_full | Lateral instability in normal viscous fingers. |
| title_fullStr | Lateral instability in normal viscous fingers. |
| title_full_unstemmed | Lateral instability in normal viscous fingers. |
| title_short | Lateral instability in normal viscous fingers. |
| title_sort | lateral instability in normal viscous fingers |
| work_keys_str_mv | AT ledesmaaguilarr lateralinstabilityinnormalviscousfingers AT quevedoreyesm lateralinstabilityinnormalviscousfingers AT corverapoiree lateralinstabilityinnormalviscousfingers AT hernandezmachadoa lateralinstabilityinnormalviscousfingers |