Direct measurement of the viscocapillary lift force near a liquid interface
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arXiv
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| Autori principali: | , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| Soggetti: | |
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| _version_ | 1866913723928543232 |
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| author | Zhang, Hao Zhang, Zaicheng Jha, Aditya Amarouchene, Yacine Salez, Thomas Guérin, Thomas Misbah, Chaouqi Maali, Abdelhamid |
| author_facet | Zhang, Hao Zhang, Zaicheng Jha, Aditya Amarouchene, Yacine Salez, Thomas Guérin, Thomas Misbah, Chaouqi Maali, Abdelhamid |
| contents | Lift force of viscous origin is widespread across disciplines, from mechanics to biology. Here, we present the first direct measurement of the lift force acting on a particle moving in a viscous fluid along the liquid interface that separates two liquids. The force arises from the coupling between the viscous flow induced by the particle motion and the capillary deformation of the interface. The measurements show that the lift force increases as the distance between the sphere and the interface decreases, reaching saturation at small distances. The experimental results are in good agreement with the model and numerical calculation developed within the framework of the soft lubrication theory. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2406_02374 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Direct measurement of the viscocapillary lift force near a liquid interface Zhang, Hao Zhang, Zaicheng Jha, Aditya Amarouchene, Yacine Salez, Thomas Guérin, Thomas Misbah, Chaouqi Maali, Abdelhamid Soft Condensed Matter Lift force of viscous origin is widespread across disciplines, from mechanics to biology. Here, we present the first direct measurement of the lift force acting on a particle moving in a viscous fluid along the liquid interface that separates two liquids. The force arises from the coupling between the viscous flow induced by the particle motion and the capillary deformation of the interface. The measurements show that the lift force increases as the distance between the sphere and the interface decreases, reaching saturation at small distances. The experimental results are in good agreement with the model and numerical calculation developed within the framework of the soft lubrication theory. |
| title | Direct measurement of the viscocapillary lift force near a liquid interface |
| topic | Soft Condensed Matter |
| url | https://arxiv.org/abs/2406.02374 |