Droplet dynamics on lubricated surfaces differ fundamentally from those on dry surfaces due to the formation of a wetting ridge around the droplet. By combining confocal microscopy and lattice Boltzmann simulations, the authors elucidate how the wetting ridge geometry evolves with speed and create heatmaps to reveal where energy is dissipated during motion.
- Abhinav Naga
- Michael Rennick
- Halim Kusumaatmaja