Microgravity spreading of water spheres on hydrophobic capillary plates

Laura Steub, Jonathan Kollmer, Derek Paxson, Achim Sack, Thorsten Pöschel, John Bartlett, Douglas Berman, Yaateh Richardson, Michel Y. Louge, F. Radjai, S. Nezamabadi, S. Luding (+1 others)
2017 EPJ Web of Conferences  
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
more » ... or the inertial phase of imbibition.
doi:10.1051/epjconf/201714016001 fatcat:ft5xjv4v2vha5fnyuine3fms5i