Superhydrophobicity and compressive stability of Salvinia surface: Mechanical analysis and structural design

Coalescence-Induced Jumping of Nanodroplets in a Perpendicular Electric Field: A Molecular Dynamics Study

“…Recently, it has been reported that jumping can be promoted by increasing the hydrophobicity of the substrate − or applying external energy like an electric field. ,,, To achieve an optimal jumping performance, ultralow adhesion and extra-large contact angles need to be pursued during coalescence . Surface wettability is a key factor affecting droplet bouncing behaviors. − , The application of the designed superhydrophobic surface can not only reduce the adhesion work but also accelerate the retraction of the liquid bridge during the jumping process, resulting in a higher energy conversion efficiency. ,, Besides, both the application of the electric field on the dropwise condensation experimentally and the insight into the electrowetting-induced one droplet detachment promote the jumping performance of droplets. − , The researchers focus on the heat-transfer performance of jumping droplets on superhydrophobic surfaces during electric-field-enhanced condensation. − , By applying a constant electric field in the experiment of dropwise condensation, the jumping frequency and height will be raised due to the charge separation of the electric double layer at the hydrophobic coating. , Traipattanakul et al focus on one jumping water droplet on a superhydrophobic surface with various gap widths and electric fields .…”