https://doi.org/10.1140/epje/s10189-021-00014-z
Regular Article - Flowing Matter
Droplet migration on conical fibers
1
Department of Physics and Astronomy, McMaster University, L8S 4M1, Hamilton, ON, Canada
2
UMR CNRS Gulliver 7083, ESPCI Paris, PSL Research University, 75005, Paris, France
Received:
20
August
2020
Accepted:
5
January
2021
Published online:
8
March
2021
The spontaneous migration of droplets on conical fibers is studied experimentally by depositing silicone oil droplets onto conical glass fibers. Their motion is recorded using optical microscopy and analyzed to extract the relevant geometrical parameters of the system. The speed of the droplet can be predicted as a function of geometry and the fluid properties using a simple theoretical model, which balances viscous dissipation against the surface tension driving force. The experimental data are found to be in good agreement with the model.
© The Author(s), under exclusive licence to EDP Sciences, SIF and Springer-Verlag GmbH Germany, part of Springer Nature 2021
