Microgravity spreading of water spheres on hydrophobic capillary plates
Microgravity spreading of water spheres on hydrophobic capillary plates
复制标题
水球在疏水毛细管板上的微重力扩散
DOI：
10.1051/epjconf/201714016001
复制
发表时间：
2017
影响因子：
--
通讯作者：
Radjai, F.
中科院分区：
文献类型：
--
作者：
Steub, Laura;Kollmer, Jonathan;Paxson, Derek;Sack, Achim;Pöschel, Thorsten;Bartlett, John;Berman, Douglas;Richardson, Yaateh;Louge, Michel Y.;Radjai, F.
我们创造了近乎完美的厘米水球，方法是分裂一个由两个金属半球组成的空腔，这个空腔由两个涂有疏水涂料并充满液体的金属半球组成，同时释放设备。一台高速摄像机捕捉到了水是如何在疏水的铝和聚碳酸酯平板上扩散的，这些平板上有圆柱状的毛细管。我们将不来梅ZARM落塔的观测结果与Frank、Perré和Li的格子-玻尔兹曼数值模拟结果进行了比较。
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.