Droplet hurdles race
Droplet hurdles race
Résumé
Water is extremely mobile on non-wetting surfaces, on which it glides at high velocities. We discuss how a few indentations placed on the surface markedly slow down drops forced to hit and jump above these hurdles. The corresponding "friction" is characterized and shown to be inertial in nature, which we interpret as the result of the successive soft shocks of the drops against obstacles.
Domaines
Physique [physics]
Origine : Publication financée par une institution