Length Scale Selects Directionality of Droplets on Vibrating Pillar Ratchet
نویسندگان
چکیده
منابع مشابه
Length scale of Leidenfrost ratchet switches droplet directionality.
Arrays of tilted pillars with characteristic heights spanning from hundreds of nanometers to tens of micrometers were created using wafer level processing and used as Leidenfrost ratchets to control droplet directionality. Dynamic Leidenfrost droplets on the ratchets with nanoscale features were found to move in the direction of the pillar tilt while the opposite directionality was observed on ...
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Leidenfrost phenomena on nano- and microstructured surfaces are of great importance for increasing control over heat transfer in high power density systems utilizing boiling phenomena. They also provide an elegant means to direct droplet motion in a variety of recently emerging fluidic systems. Here, we report the fabrication and characterization of tilted nanopillar arrays (TNPAs) that exhibit...
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ژورنال
عنوان ژورنال: Advanced Materials Interfaces
سال: 2014
ISSN: 2196-7350
DOI: 10.1002/admi.201400337