3 papers
physics.flu-dyn2010
UFO: "Unidentified" Floating Object Driven by Thermocapillarity
Yuejun Zhao, Chuan-Hua Chen
In this fluid dynamics video, we show thermocapillary actuation of a binary drop of water and heptanol where the binary drop in motion takes on a UFO-like shape. On a parylene-coat…
physics.flu-dyn2010
Unstable Leidenfrost Drops on Roughened Surfaces
Jonathan B. Boreyko, Chuan-Hua Chen
Drops placed on a surface with a temperature above the Leidenfrost point float atop an evaporative vapor layer. In this fluid dynamics video, it is shown that for roughened surface…
physics.flu-dyn2009
Spontaneous Jumping of Coalescing Drops on a Superhydrophobic Surface
Jonathan Boreyko, Chuan-Hua Chen
When micrometric drops coalesce in-plane on a superhydrophobic surface, a surprising out-of-plane jumping motion was observed. Such jumping motion triggered by drop coalescence was…