| Issue |
EPL
Volume 144, Number 3, November 2023
|
|
|---|---|---|
| Article Number | 33001 | |
| Number of page(s) | 7 | |
| Section | Fluid and nonlinear dynamics | |
| DOI | https://doi.org/10.1209/0295-5075/ad0eed | |
| Published online | 07 December 2023 | |
Spreading and absorption of a drop on a swelling surface
1 LadHyX, Ecole Polytechnique, UMR 7646 - F-91128 Palaiseau Cedex, France
2 Institut Jean le Rond d'Alembert, Sorbonne Université, CNRS, UMR 7190 - F-75005, Paris, France
Received: 25 August 2023
Accepted: 22 November 2023
When a drop is placed on a surface it fully wets, it usually spreads until the height of the drop is comparable to the size of a single fluid molecule. However, when some fluid is absorbed by the substrate, the drop will first spread to a given radius before receding and eventually disappearing completely. In this study, we consider the spreading and absorption of a silicone oil drop on a swelling elastomeric substrate. We observe that the maximal radius of the drop does not depend on the fluid viscosity and can be predicted from the droplet volume and material properties. We rationalize our observations with a scaling analysis and a model coupling the spreading to a linear poroelastic description of the elastomer.
© 2023 EPLA
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.