This is my first semester term paper (co-authored with Katie Varland): bounce.pdf. It’s about water drops bouncing off hydrophobic surfaces. Yes, the premise sounds cool, and the shots we made with a high-speed camera are fascinating. The paper itself is descriptive rather than analytical, but an interesting boundary has been observed between a “splashing region” and a “bouncing region”: one where the drop stays in one piece, barely avoiding being split into small droplets, while most of its energy is converted into turbulent motion, thus leaving very little energy to bounce. Still frames to see towards the end of the paper!
Between bouncing and splashing: water drops on a solid surface
This is my first semester term paper (co-authored with Katie Varland): bounce.pdf. It’s about water drops bouncing off hydrophobic surfaces. Yes, the premise sounds cool, and the shots we made with a high-speed camera are fascinating. The paper itself is descriptive rather than analytical, but an interesting boundary has been observed between a “splashing region” and a “bouncing region”: one where the drop stays in one piece, barely avoiding being split into small droplets, while most of its energy is converted into turbulent motion, thus leaving very little energy to bounce. Still frames to see towards the end of the paper!