Liquid Surfaces

Tracking and Texturing Liquid Surfaces

Tracking and Texturing Liquid Surfaces

Liquid droplets on hot surfaces

In this seminar behaviour of liquid droplets on a very hot surface is presented and a simple model is introduced to describe droplet evaporation. Special cases where droplet dynamics is involved are mentioned, important processes and their qualitative description is presented. This seminar supplements a previous seminar Leidenfrost effect, presented in December 2011.

Calculated electronic profiles for liquid-metal surfaces.

Spontaneous dispersion of particles on liquid surfaces.

When small particles (e.g., flour, pollen, etc.) come in contact with a liquid surface, they immediately disperse. The dispersion can occur so quickly that it appears explosive, especially for small particles on the surface of mobile liquids like water. This explosive dispersion is the consequence of capillary force pulling particles into the interface causing them to accelerate to a relatively...

Neutron Reflection from the Surfaces of Liquid

We report and discuss the first neutron reflection measurements from the free surfaces of normal and superfluid He and of a liquid He-He mixture. In case of liquid He the surface roughness is different above and below the lambda transition, being smoother in the superfluid state. For the superfluid, we also observe the formation of a surface layer ∼ 200 Å thick which has a subtly different neut...