| Issue |
EPJ Web Conf.
Volume 140, 2017
Powders and Grains 2017 – 8th International Conference on Micromechanics on Granular Media
|
|
|---|---|---|
| Article Number | 16001 | |
| Number of page(s) | 4 | |
| Section | Miscellaneous | |
| DOI | https://doi.org/10.1051/epjconf/201714016001 | |
| Published online | 30 June 2017 | |
https://doi.org/10.1051/epjconf/201714016001
Microgravity spreading of water spheres on hydrophobic capillary plates
1 Institute for Multiscale Simulation, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, 91052, Germany
2 Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, NY 14853, USA
* e-mail: Michel.Louge@cornell.edu
Published online: 30 June 2017
We create nearly perfect centimetric spheres of water by splitting a cavity consisting of two metal hemispheres coated with a hydrophobic paint and under-filled with liquid, while releasing the apparatus in free-fall. A high-speed camera captures how water spread on hydrophobic aluminum and polycarbonate plates perforated with cylindrical capillaries. We compare observations at the ZARM drop tower in Bremen with Lattice-Boltzmann numerical simulations of Frank, Perré and Li for the inertial phase of imbibition.
© The Authors, published by EDP Sciences, 2017
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