Coming up next
2025-08-19 - 10:00 @ BW 0.06 (New Gorlaeus)
Master Defense Martin Bijl (Alexandre’s student)
Title: "Impact of liquid metal droplets"
Abstract:
Liquid droplets are of interest in many fields of science and engineering. One particular interest is the maximum deformation of the droplet when impacting a surface. The deformation depends on the viscosity, surface tension, density, diameter, and velocity of the droplet. The maximum de formation have been investigated before for different materials, including water, blood, and glycerol. Furthermore, a recent computer model found the maximum deformation for a wide range of material properties, velocities, and diameters. We found the maximum deformation of high surface tension Galinstan droplet impacts. The droplets were accelerated using charge contact electrophoresis. We found that the predictions by the theory were mostly accurate. In addition, we found that conversely the theory is potentially useful in finding the surface tension of a material. Moreover, our results add to an increasing number of droplet deformation experiments.