Predicting the drop size passing through a superhydrophobic orifice

Mean Drop Size and Drop Size Distribution in a Hanson Mixer-Settler Extraction Column

Heat exchange between a bouncing drop and a superhydrophobic substrate.

The ability to enhance or limit heat transfer between a surface and impacting drops is important in applications ranging from industrial spray cooling to the thermal regulation of animals in cold rain. When these surfaces are micro/nanotextured and hydrophobic, or superhydrophobic, an impacting drop can spread and recoil over trapped air pockets so quickly that it can completely bounce off the ...

Delayed frost growth on jumping-drop superhydrophobic surfaces.

Self-propelled jumping drops are continuously removed from a condensing superhydrophobic surface to enable a micrometric steady-state drop size. Here, we report that subcooled condensate on a chilled superhydrophobic surface are able to repeatedly jump off the surface before heterogeneous ice nucleation occurs. Frost still forms on the superhydrophobic surface due to ice nucleation at neighbori...

Precise drop dispensation on superhydrophobic surfaces using acoustic nebulization†

Laboratory for Optics, Acoustics and Mech 3800, Australia. E-mail: [email protected] Micro/Nanophysics Research Laboratory, Australia Melbourne Centre for Nanofabrication, Cla Cardiovascular Research Institute, Yong University of Singapore, National University Medicine, 14 Medical Drive, Singapore 1175 Department of Mechanical & Aerospace Eng 3800, Australia † Electronic supplementary informatio...

Superhydrophobic Nanowire Surfaces for Drop Movement Using Magnetic Fields

We present a novel method to control water drop movement on superhydrophobic surfaces through magnetic fields. Water drops with paramagnetic particles can be moved on fractal Si-nanowire superhydrophobic surfaces at high speeds by displacing a magnet. A drop pinned to a surface defect can be combined with another drop containing paramagnetic particles thus allowing movement of the newly formed ...