#dropsart

The contact time of a drop on a hydrophobic surface is affected by the presence of macro defects (like macro wires). Video shows the top view and side view of a drop of radius 1.3 mm impacting cylindrical wires of radius 100 micrometers also treated to be hydrophobic similarly to the flat surface at V=1.0m/s. The drop splits in 4 lobes that quickly forms 2 symmetric sub drops. Takeoff occurs 7.6 ms after impact. They take off the surface about square root of 2 time faster than one on a similar flat hydrophobic plate with no defects. This findings might help design even better water repellent or anti-freezing surface taking advantages of this reduced contact time. credit: Gauthier, Symon, Clanet and Quere, Water impacting on superhydrophobic macrotextures, Nat. Comm. 6:8001 (2015) #nakedfluiddynamics #fluiddynamics #fluidmechanics #physics #physique #drops #dropsart #dropsplash #splash #splashart #physicisart #artinscience #scienceisart #beautiful #mindblown #awesome